39 Highlights 40 Differences 10 Reactions 0 Likes

Sleep Number c4 vs Sleep Number p5: 39 Highlights & 40 Differences — So, Which Mattress Actually Works Better

Comparing Sleep Number c4 and p5 helps you choose the mattress that matches your comfort and support needs. Here’s what sets Sleep Number c4 and Sleep Number p5 apart. From mattress core material, split mattress option, smart adjustable firmness & certipur-us certified to user comfort, this is your shortcut to choosing the right mattress.

18 Points
Sleep Number
Sleep Number
Sleep Number c4
Sleep Number c4
23 Points
Sleep Number
Sleep Number
Sleep Number p5
Sleep Number p5
vs

Highlights 217

No extras. Just what matters.
18 Points
vs
23 Points

Why is Sleep Number c4 better than Sleep Number p5 ?

Scroll down for more facts

Sleep Number C4 vs. P5: A Detailed Comparison of Two Advanced Airbeds

When it comes to premium adjustable airbeds, the Sleep Number C4 and P5 stand out as exceptional contenders in the market. Both mattresses leverage air chamber technology to deliver personalized firmness control, alongside smart features such as app connectivity and sleep tracking. 

Nevertheless, these two models cater to different needs based on their design philosophy and feature sets. The 2017-released C4 leans toward a firmer sleep experience with temperature regulation and ergonomic certification. At the same time, the earlier 2014 P5 offers a softer range, thicker comfort layers, and higher sag resistance, making it better suited for heavier sleepers.

The Robust Appeal of the Sleep Number C4

The Sleep Number C4 is designed with a firm mattress feel rated at 8 out of 10, perfectly aimed at sleepers who appreciate solid support. Its 1.5-inch polyurethane foam comfort layer is infused with cooling gel, enhancing its temperature regulation capabilities. Complementing this is a breathable polyester cover, ensuring airflow and climate adaptability throughout the night.

One defining feature of the C4 is its 15-year warranty, which reflects confidence in its build quality and longevity. The mattress offers standard queen, king, California king, and split king sizes with a modest 9-inch medium profile that fits most frames. It boasts good motion isolation (8/10) and solid edge support (8/10), ideal for couples seeking minimal disturbance.

Ergonomic certification from a chiropractic association confirms its suitability for multiple sleep positions, including back, side, stomach, and combination sleepers, through zoned support and pressure relief features. Dual firmness adjustment with smart sensor connectivity and app integration provides an effortless way to customize firmness, a notable plus for tech-oriented sleepers. Additionally, the C4 includes a removable and washable cover, helping maintain cleanliness more conveniently than its competitor.

What Makes the Sleep Number P5 Still Worth Considering

Though released in 2014, the Sleep Number P5 remains a contender due to its versatility and thicker comfort layers. With a 4-inch comfort system, it combines natural latex, gel foam, and memory foam that offers a more plush sleeping surface compared to the C4. This composition, along with its adjustable firmness range (4/10 to 8/10), makes the P5 adaptable for those who prefer sleeping softer.

Performance-wise, the P5 offers high sag resistance and a better edge support rating (9/10), suitable for heavier users and couples with varied sleep needs. Indeed, its 800 lb weight capacity doubles that of the C4, making it the preferred option for heavy sleepers.

Alongside excellent motion isolation (10/10), the P5 integrates customizable firmness inserts that enable additional personal tailoring; a standout feature not found on the C4. It also brings convenience with a USB charging port, catering to the modern bedroom traveler.

Environmental comfort is less prominent, as the P5 lacks dedicated temperature regulation or climate adaptability features, despite containing gel-infused foam. On the other hand, the mattress comes in standard sizes without a split king option and is slightly taller at a 10-inch profile. Its 15-year warranty mirrors the C4, though with a shorter expected lifespan of 10 years, which potential buyers should factor into their decision-making.

Quick Take

The Sleep Number C4 shines with its firm support, temperature regulation, and ergonomic backing, all at a more affordable price. Meanwhile, the P5 appeals to those wanting softer comfort options, superior motion isolation, and higher durability for heavy sleepers, coupled with advanced customizable inserts and tech conveniences.

Bottom Line Recommendation

For sleepers seeking a recent model with firm support and cooling features, the Sleep Number C4 is an excellent fit, especially at roughly $0 at Amazon. However, if you need plush layered comfort, enhanced support for heavier bodies, and top-notch motion isolation, even at a premium, you'll find the P5 a compelling choice, available for about $2,399 at Amazon.

Verdict

  • Winner => Sleep Number C4: Best for firmer feel, superior temperature control, ergonomic certification, and better value.
  • Runner-up => Sleep Number P5: Ideal for softer comfort preferences, heavier sleepers, and enhanced motion isolation with customizable firmness.

Comparisons 17

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Price comparisons

(✱) Prices may be changed at any time without further notice.

Related comparisons 17

Because one duel is never enough.

Comparisons & Facts 217

Side by side. The numbers. The features. No drama.

Need better nights? Start with a better mattress. This side-by-side of Sleep Number c4 vs Sleep Number p5 covers features, support, and what real sleepers say.

General Information 11

Intended Use

What is the intended use?

73 Sleep Number c4 0 Votes Home

51 Sleep Number p5 0 Votes Home, Hotel, Dorm, RV

Sleep Number p5
Sleep Number p5

The P5 mattress is versatile enough for use in various settings like your home, hotels, dorms, or even RVs. It’s an excellent choice for those who need a portable, adjustable bed while traveling.

Defines the usage context.

Mattress Type

What is the mattress type?

53 Sleep Number c4 0 Votes Air

66 Sleep Number p5 0 Votes Air

Sleep Number c4
vs
Sleep Number p5
Mattress Type

Both Sleep Number c4 and p5 share the Air Mattress Type, highlighting their similar adjustable air chamber design.

Categorizes construction type.

Free Return Policy

Does it come with a free return policy?

No 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Free Return Policy

The Free Return Policy for Sleep Number c4 is No, whereas for Sleep Number p5 it is Yes, making the p5 more favorable for buyers who want a risk-free purchase.

Shows whether the product allows hassle-free returns.

Product Type

What type of mattress is it?

78 Sleep Number c4 0 Votes Airbed

71 Sleep Number p5 0 Votes Airbed

Defines the fundamental mattress category.

Model Name

What is the model name?

63 Sleep Number c4 0 Votes C4

62 Sleep Number p5 0 Votes P5

Provides the marketing name used by the brand.

Model Number

What is the model number?

Who knows? 0 Votes Sleep Number c4 (Help us out by suggesting one!)

Who knows? 0 Votes Sleep Number p5 (Help us out by suggesting one!)

Unique identifier used internally or for warranty claims.

Release Year

What is the release year?

53 Sleep Number c4 0 Votes 2017

0 Sleep Number p5 0 Votes 2014

Indicates when the product was introduced to the market.

Country of Manufacture

Where is the mattress manufactured?

73 Sleep Number c4 0 Votes USA

81 Sleep Number p5 0 Votes USA

Shows where the mattress is manufactured.

Target Market

What is the target market?

93 Sleep Number c4 0 Votes Global

86 Sleep Number p5 0 Votes Global

Sleep Number c4
vs
Sleep Number p5
Target Market

Both Sleep Number c4 and Sleep Number p5 target the Global market, offering availability worldwide.

Specifies the geographic or demographic market.

Warranty Period

What is the warranty period?

53 Sleep Number c4 0 Votes 15 Years

46 Sleep Number p5 0 Votes 15 Years

Sleep Number c4
vs
Sleep Number p5
Warranty Period

Sleep Number c4 and p5 both offer a 15 Years Warranty Period, ensuring long-term coverage.

Duration of warranty coverage.

Trial Period Length

What is the trial period length?

100 Nights 0 Votes
Sleep Number c4
100 Nights 0 Votes
Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Trial Period Length

The Trial Period Length for both Sleep Number c4 and p5 is 100 nights, providing ample time to test the mattress.

Indicates how many nights consumers can try the mattress risk-free.

Dimensions & Weight 110

Mattress Size

What is the mattress size?

0 Sleep Number c4 0 Votes Queen, King, Cal King, Split King

90 Sleep Number p5 0 Votes Twin, Twin XL, Full, Queen, King, Cal King

Identifies the size for the mattress.

Width (Twin)

What is the Twin mattress width?

Who knows? 0 Votes Sleep Number c4 (Help us out by suggesting one!)

38 inch 0 Votes
Sleep Number p5

Standard width for Twin size mattress.

Width (Twin XL)

What is the Twin XL mattress width?

Who knows? 0 Votes Sleep Number c4 (Help us out by suggesting one!)

38 inch 0 Votes
Sleep Number p5

Standard width for Twin XL mattress.

Width (Full)

What is the Full mattress width?

Who knows? 0 Votes Sleep Number c4 (Help us out by suggesting one!)

54 inch 0 Votes
Sleep Number p5

Standard width for Full (Double) mattress.

Width (Queen)

What is the Queen mattress width?

60 inch 0 Votes
Sleep Number c4
60 inch 0 Votes
Sleep Number p5

Standard width for Queen size mattress.

Width (King)

What is the King mattress width?

76 inch 0 Votes
Sleep Number c4
76 inch 0 Votes
Sleep Number p5

Standard width for King size mattress.

Width (California King)

What is the Cal King mattress width?

72 inch 0 Votes
Sleep Number c4
72 inch 0 Votes
Sleep Number p5

Standard width for California King mattress.

Width (Split King)

What is the Split King mattress width?

76 inch 0 Votes
Sleep Number c4

Who knows? 0 Votes Sleep Number p5 (Help us out by suggesting one!)

Combined width of two Twin XL mattresses.

Width (Super King)

What is the width of the Super King mattress?

Who knows? 0 Votes Sleep Number c4 (Help us out by suggesting one!)

Who knows? 0 Votes Sleep Number p5 (Help us out by suggesting one!)

The width of the mattress. A wider mattress offers more space.

Width (Baby)

What is the width of the baby mattress?

Who knows? 0 Votes Sleep Number c4 (Help us out by suggesting one!)

Who knows? 0 Votes Sleep Number p5 (Help us out by suggesting one!)

The width of the mattress, important for fitting in a crib or smaller space.

Width (RV)

What is the mattress width for RV?

Who knows? 0 Votes Sleep Number c4 (Help us out by suggesting one!)

Who knows? 0 Votes Sleep Number p5 (Help us out by suggesting one!)

The overall width of the mattress, important for fitting specific bed frames or RV layouts.

Width (Alaskan King)

What is the width of the Alaskan King mattress?

Who knows? 0 Votes Sleep Number c4 (Help us out by suggesting one!)

Who knows? 0 Votes Sleep Number p5 (Help us out by suggesting one!)

Specifies the width of the mattress.

Comfort & Firmness 13

Cooling Technology

What cooling technology is included?

69 Sleep Number c4 0 Votes Gel-Infused Foam

0 Sleep Number p5 0 Votes Gel-Infused Foam

Sleep Number c4
Sleep Number c4

The gel-infused foam in the comfort layer helps dissipate body heat, keeping you cooler throughout the night. This is especially useful for hot sleepers or those who experience temperature fluctuations during sleep.

Sleep Number p5
Sleep Number p5

The gel-infused foam helps regulate temperature by dispersing heat, making it a good option for sleepers who tend to get warm at night. However, it doesn’t offer full cooling technology like some other models, so if you’re a hot sleeper, you may need additional cooling measures.

GDescribes specific cooling methods used.

Firmness Level

What is the firmness level?

43 Sleep Number c4 0 Votes Firm

29 Sleep Number p5 0 Votes Soft, Medium, Firm

Sleep Number c4
vs
Sleep Number p5
Firmness Level

The Firmness Level for Sleep Number c4 is Firm only, whereas Sleep Number p5 offers Soft, Medium, and Firm options, providing more customization on firmness.

Describes the general firmness category.

Firmness Scale Rating

What is the firmness rating?

75 Sleep Number c4 1 Votes 8/10

43 Sleep Number p5 0 Votes 4/10, 6.5/10, 8/10

Sleep Number c4
vs
Sleep Number p5
Firmness Scale Rating

Sleep Number c4 rates firmness at 8/10, while Sleep Number p5 offers multiple ratings of 4/10, 6.5/10, and 8/10, highlighting greater flexibility in firmness selection with the p5.

Numeric scale where 1 is softest and 10 is firmest.

I appreciate the firmer feel of the C4 rated 8 out of 10 it really suits my sleeping style better.

See more

Temperature Regulation Feature

Does it have temperature regulation features?

Yes 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Indicates if mattress is designed to maintain neutral sleep temperature.

Comfort Layer Thickness

What is the comfort layer thickness?

1.5 inch 0 Votes
Sleep Number c4
4 inch 1 Votes
Sleep Number p5

Sleep Number c4
Sleep Number c4

The 1.5-inch comfort layer is made of polyurethane foam, offering moderate cushioning while still maintaining a firm feel. It’s a good option for sleepers who want minimal plushness but still need pressure relief. About 3.8 cm thick.

Sleep Number p5
Sleep Number p5

The 4-inch comfort layer provides a balance of softness and support, contouring to your body for pressure relief while maintaining a medium-firm feel. It’s perfect for back and stomach sleepers who need a supportive yet cushioned surface.

Thickness of the comfort layer on top.

The P5s 4 inch comfort layer is way softer and thicker which is great for my back problems.

See more

Motion Isolation Rating

What is the motion isolation rating?

73 Sleep Number c4 0 Votes 8/10

86 Sleep Number p5 0 Votes 10/10

Sleep Number c4
Sleep Number c4

With a strong rating of 8/10, this mattress is great for couples, minimizing motion transfer so that movements from one sleeper won’t disturb the other. This is ideal for light sleepers or partners with differing schedules.

Sleep Number p5
Sleep Number p5

The P5 has excellent motion isolation, meaning if your partner moves during the night, you won’t feel it. This is a huge benefit for couples who want uninterrupted sleep.

Measures how well the mattress prevents motion transfer.

Edge Support Rating

What is the edge support rating?

60 Sleep Number c4 0 Votes 8/10

76 Sleep Number p5 0 Votes 9/10

Sleep Number c4
Sleep Number c4

The mattress features reinforced foam edges that help prevent sagging and make sitting on the edge of the bed more stable. It also allows you to use the entire surface of the mattress without feeling like you’re rolling off.

Sleep Number p5
Sleep Number p5

High edge support ensures that the bed’s edges remain firm and usable, providing a secure seating surface and preventing sagging around the perimeter. This is especially important if you tend to sit or sleep near the edge.

Indicates stability around the mattress edges.

Zoned Support

Does the mattress include zoned support?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Zoned Support

Both Sleep Number c4 and p5 include Zoned Support, indicating targeted firmness zones for improved comfort.

Indicates if the mattress offers different support zones.

Adjustable Firmness Range

Does it have an adjustable firmness range?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Shows if firmness can be adjusted or customized.

Ergonomic Certification

Does it have ergonomic certifications?

78 Sleep Number c4 0 Votes Chiropractic Association

0 Sleep Number p5 0 Votes Orthopedic Approved

Lists recognized ergonomic approvals.

Comfort Technology

What comfort technology is included?

61 Sleep Number c4 0 Votes Polyurethane Foam

73 Sleep Number p5 0 Votes Gel Foam, Memory Foam, Natural Latex

Sleep Number c4
vs
Sleep Number p5
Comfort Technology

Sleep Number c4 uses Polyurethane Foam for Comfort Technology, while Sleep Number p5 combines Gel Foam, Memory Foam, and Natural Latex, suggesting the p5 offers more variety in comfort materials.

Special comfort features used in the top layers.

Pressure Relief Rating

What is the pressure relief rating?

63 Sleep Number c4 0 Votes Good

11 Sleep Number p5 0 Votes Fair

Rates how well the mattress relieves pressure points.

Construction & Materials 16

Mattress Core Material

What is the core material?

68 Sleep Number c4 0 Votes Air Chambers

0 Sleep Number p5 0 Votes Air Chambers

Sleep Number c4
vs
Sleep Number p5
Mattress Core Material

Both Sleep Number c4 and p5 use Air Chambers as the Mattress Core Material, supporting adjustable firmness via air technology.

Defines the main support structure.

Coil Gauge

What is the coil gauge?

Who knows? 0 Votes Sleep Number c4 (Help us out by suggesting one!)

Who knows? 0 Votes Sleep Number p5 (Help us out by suggesting one!)

Thickness of the coils measured in gauge.

Eco-Friendly Material Certification

What eco-friendly certifications are included?

0 Sleep Number c4 0 Votes CertiPUR-US

0 Sleep Number p5 0 Votes CertiPUR-US

Certifications for sustainable materials.

Handcrafted Construction

Is the mattress handcrafted?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Indicates if the mattress is handmade or artisan-crafted.

Comfort Layer Material

What is the comfort layer material?

0 Sleep Number c4 0 Votes Polyurethane Foam

0 Sleep Number p5 0 Votes Plush Foam

Sleep Number c4
vs
Sleep Number p5
Comfort Layer Material

The Comfort Layer Material for Sleep Number c4 is Polyurethane Foam, while Sleep Number p5 uses Plush Foam, suggesting the p5 may provide a plusher feel.

Materials used in the comfort layers.

Cover Material

What is the cover material?

0 Sleep Number c4 0 Votes Polyester

0 Sleep Number p5 0 Votes Rayon

Sleep Number c4
vs
Sleep Number p5
Cover Material

Sleep Number c4 has a Polyester Cover Material, whereas Sleep Number p5 uses Rayon, indicating a difference in fabric feel and breathability.

Materials used for the outer cover.

Flame Retardant Material

What flame retardant is used?

0 Sleep Number c4 0 Votes Natural Wool

0 Sleep Number p5 0 Votes Rayon

Sleep Number c4
Sleep Number c4

The use of natural wool as a flame retardant material is an eco-friendly choice that’s both safe and sustainable. Wool is a natural material that also helps regulate temperature, keeping you comfortable through the night.

Sleep Number p5
Sleep Number p5

Rayon is used in the cover as a flame-retardant material. It’s a safe and non-toxic alternative to chemicals commonly used in other mattresses.

Material used to meet fire safety standards.

Quilting Type

What quilting type is used?

Who knows? 0 Votes Sleep Number c4 (Help us out by suggesting one!)

0 Sleep Number p5 0 Votes Pillow Top

Sleep Number c4
vs
Sleep Number p5
Quilting Type

Quilting Type is unavailable for Sleep Number c4, but Sleep Number p5 features a Pillow Top quilting type, which may add extra softness.

Describes the quilting style on the mattress surface.

Foam Type

What foam type is included?

0 Sleep Number c4 0 Votes Polyurethane Foam

0 Sleep Number p5 0 Votes Memory Foam, Gel-Infused

Sleep Number p5
Sleep Number p5

Memory foam contours to your body, providing customized pressure relief, while the gel-infused foam helps prevent the bed from overheating. This combination makes the P5 comfortable for those who want both support and cooling.

Specifies the type of foam used.

Layer Count

What is the layer count?

0 Sleep Number c4 0 Votes 3

0 Sleep Number p5 0 Votes 2

Sleep Number p5
Sleep Number p5

The P5 mattress has two main layers: the air chambers for firmness and a plush foam layer for comfort. This simplified construction helps keep the mattress lightweight and adjustable while offering sufficient support and comfort.

Total number of layers in mattress construction.

Reinforced Edge Material

What is the reinforced edge material?

0 Sleep Number c4 0 Votes Foam

0 Sleep Number p5 0 Votes High-Density Foam

Sleep Number c4
Sleep Number c4

The foam edge reinforcement ensures that the mattress maintains its shape over time, preventing sagging and providing better support for getting in and out of bed.

Material reinforcement along the edges.

Removable / Washable Cover

Does it have a removable and washable cover?

Yes 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
Sleep Number c4

The cover can be removed for spot cleaning, which is great for maintaining the mattress’s cleanliness. It’s not machine-washable, but the ability to clean it by hand is still a major convenience.

Indicates if the cover can be removed and washed.

Performance & Durability 11

Sag Resistance Rating

What is the sag resistance rating?

0 Sleep Number c4 0 Votes Medium

0 Sleep Number p5 0 Votes High

Sleep Number c4
Sleep Number c4

This rating suggests that while the mattress will resist sagging over time, heavier individuals may want to pay extra attention to their Sleep Number settings to avoid excessive compression.

Sleep Number p5
Sleep Number p5

A high sag resistance rating ensures the mattress will keep its shape and firmness for years, even with regular use. This is crucial for maintaining comfort and support.

Rates the mattress resistance to sagging.

Expected Lifespan

What is the expected lifespan?

15 Years 0 Votes
Sleep Number c4
10 Years 0 Votes
Sleep Number p5

Sleep Number c4
Sleep Number c4

With a lifespan of 15 years, this mattress is designed to provide consistent comfort and support for the long haul, ensuring you won’t need to replace it any time soon.

Average years the mattress is designed to last.

Indentation Load Deflection (ILD)

What is the ILD value?

0 Sleep Number c4 0 Votes Medium

0 Sleep Number p5 0 Votes Medium (20–30 lbs)

Sleep Number p5
Sleep Number p5

The medium ILD rating indicates a balanced feel that isn’t too soft or too firm. It’s perfect for sleepers who want support with a bit of cushioning, such as back and stomach sleepers.

Measures foam firmness by required load to indent.

Density Rating

What is the density rating?

0 Sleep Number c4 0 Votes Medium

0 Sleep Number p5 0 Votes Medium

Foam density that indicates durability and support.

Memory Foam Recovery Time

What is the recovery time of the foam?

5 sec 0 Votes
Sleep Number c4
20 sec 0 Votes
Sleep Number p5

Time it takes memory foam to return to shape.

Rotatable Design

Can the mattress be rotated?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Indicates if mattress can be rotated to extend life.

Flippable Design

Can the mattress be flipped?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Flippable Design

Sleep Number c4 and p5 both lack a Flippable Design, so only one sleeping surface is intended for use.

Shows whether the mattress can be flipped.

Anti-Microbial Treatment

Does it have antimicrobial treatment?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Anti-Microbial Treatment

Neither Sleep Number c4 nor p5 includes Anti-Microbial Treatment, so neither mattress has added protection against microbes.

Indicates if materials are treated to resist microbes.

Bed Bug Resistant

Is the mattress bed bug resistant?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Bed Bug Resistant

Neither Sleep Number c4 nor p5 is Bed Bug Resistant, indicating no special treatment for pests in either mattress.

Shows if the mattress has protection against bed bugs.

Warranty Coverage Type

What type of warranty coverage is provided?

0 Sleep Number c4 0 Votes Limited

0 Sleep Number p5 0 Votes Limited

Sleep Number c4
vs
Sleep Number p5
Warranty Coverage Type

Both Sleep Number c4 and p5 provide Limited warranty coverage, setting similar expectations for protection scope.

Describes the type of warranty coverage.

Indentation Resistance Guarantee

Is there an indentation resistance guarantee?

No 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Indentation Resistance Guarantee

Sleep Number c4 does not offer an Indentation Resistance Guarantee, whereas Sleep Number p5 does, suggesting p5 may maintain shape better over time.

Assurance that mattress won’t indent prematurely.

Comfort Adjustability 9

Split Mattress Option

Is it available in split design?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Split Mattress Option

Sleep Number c4 and p5 both offer a Split Mattress Option, catering to couples with differing comfort preferences.

Shows if mattress can be split into two sides.

Smart Adjustable Firmness

Does it offer smart firmness adjustment?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Indicates if firmness can be changed via smart tech.

Adjustable Base Compatibility

Is it compatible with adjustable bases?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Adjustable Base Compatibility

Both Sleep Number c4 and p5 are compatible with Adjustable Bases, enhancing versatility in bed setup.

Indicates if mattress can be used with an adjustable bed base.

Dual Firmness Option

Does it offer dual firmness?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Dual Firmness Option

Both Sleep Number c4 and p5 feature Dual Firmness Option, allowing different firmness settings on each side of the bed.

Indicates if mattress offers two firmness levels in one design.

Removable Top Layer

Does it have a removable top layer?

Yes 1 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Removable Top Layer

Sleep Number c4 has a Removable Top Layer, unlike Sleep Number p5 where this feature is not available, aiding easier cleaning or customization for the c4.

Indicates if the top comfort layer can be removed or swapped.

I like that the C4 has a removable top layer which makes cleaning way easier than the P5.

See more

Modular Layer Design

Does it have modular layers?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Modular Layer Design

Neither Sleep Number c4 nor p5 employs a Modular Layer Design, reflecting fixed mattress construction.

Allows layers to be rearranged for customized comfort.

Customizable Firmness Inserts

Does it support firmness inserts?

No 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Supports inserts or pads to adjust firmness.

Head & Foot Elevation Support

Does it support head & foot elevation?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Shows if mattress supports head and foot elevation.

Replaceable Comfort Layer Program

Does it offer a replaceable comfort layer program?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Indicates if brand allows swapping comfort layers through a program.

Health & Safety 9

CertiPUR-US Certified

Is it CertiPUR-US certified?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
CertiPUR-US Certified

Both Sleep Number c4 and p5 are CertiPUR-US Certified, ensuring their foam materials meet safety and environmental standards.

Shows if foams meet CertiPUR-US safety standards.

Chemical-Free Fire Barrier

Does it use a chemical-free fire barrier?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Chemical-Free Fire Barrier

Both Sleep Number c4 and p5 include a Chemical-Free Fire Barrier, confirming safer materials use.

Fire safety protection without chemical sprays.

Allergy-Friendly

Is it allergy-friendly?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Mattress is suitable for people with allergies.

GREENGUARD Gold Certified

Is it GREENGUARD Gold certified?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Indicates compliance with low chemical emissions.

OEKO-TEX Certified

Is it OEKO-TEX certified?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
OEKO-TEX Certified

Neither Sleep Number c4 nor p5 is OEKO-TEX Certified, so they lack this specific textile safety certification.

Ensures textiles are free from harmful substances.

Formaldehyde Free

Is the mattress formaldehyde free?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Formaldehyde Free

Sleep Number c4 and p5 are both Formaldehyde Free, reducing exposure to harmful chemicals.

Indicates if product is free from formaldehyde chemicals.

Low VOC Emission

Does it have low VOC emission?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Low VOC Emission

Both Sleep Number c4 and p5 have Low VOC Emission, indicating low levels of off-gassing chemicals.

Ensures mattress has low volatile organic compound emissions.

Anti-Dust Mite Treatment

Does it have anti-dust mite treatment?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Treated to resist dust mites.

Asthma & Allergy Foundation Certification (AAFA)

Is it AAFA certified?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Confirms endorsement by AAFA for allergy safety.

Temperature & Climate 8

Cooling Gel Infusion

Does it have cooling gel infusion?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Cooling Gel Infusion

Both Sleep Number c4 and p5 have Cooling Gel Infusion, which helps in maintaining a cooler surface temperature.

Indicates if cooling gel is infused in foam layers.

Moisture-Wicking Fabric

Does it use moisture-wicking fabric?

No 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Moisture-Wicking Fabric

Sleep Number c4 does not have Moisture-Wicking Fabric, while Sleep Number p5 does, making the p5 better suited for moisture management.

Ensures cover or material draws away sweat and moisture.

Seasonal Use Design

Does it have a seasonal use design?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Mattress is designed with seasonal dual sides for hot and cold weather.

Heat Dissipation Rating

What is the heat dissipation rating?

0 Sleep Number c4 1 Votes Good

0 Sleep Number p5 0 Votes Low

Rates how well mattress disperses heat.

The C4 does better with heat dissipation rating of good compared to the P5s low rating which helps me stay cool.

See more

Phase Change Material

Does it use phase change materials?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Phase Change Material

Neither Sleep Number c4 nor p5 includes Phase Change Material, so no added temperature regulation through this technology.

Shows if mattress uses phase-change materials for temperature control.

Breathable Cover

Does it have a breathable cover?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Breathable Cover

Both Sleep Number c4 and p5 feature a Breathable Cover, contributing to better airflow and cooler sleep.

Indicates if the outer cover allows airflow.

Climate Adaptability

Is it climate adaptable?

Yes 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Indicates if mattress adapts to various climates.

Airflow Channel Design

Does it feature airflow channels?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Includes built-in airflow channels for ventilation.

Seating & Capacity 8

Seating Capacity

What is the seating capacity?

0 Sleep Number c4 0 Votes 2 adults

0 Sleep Number p5 0 Votes 2 adults

Sleep Number c4
vs
Sleep Number p5
Seating Capacity

Both Sleep Number c4 and p5 are designed for 2 adults seating capacity, supporting standard couple use.

Maximum number of people the mattress is designed to seat or sleep.

Couple Friendly Design

Is it couple friendly?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Couple Friendly Design

Both Sleep Number c4 and p5 have Couple Friendly Design, accommodating shared use comfortably.

Indicates if mattress minimizes motion transfer and supports two sleepers.

Maximum Weight Capacity

What is the maximum weight capacity?

400 lbs 0 Votes
Sleep Number c4
800 lbs 1 Votes
Sleep Number p5

Maximum supported body weight.

I need a mattress that can hold up to 800 lbs so the P5 is perfect with its high max weight limit.

See more

Edge Sitting Comfort Rating

What is the edge sitting comfort rating?

0 Sleep Number c4 0 Votes Good

0 Sleep Number p5 0 Votes Good

Rates how comfortable and stable the edge feels when sitting.

Bunk Bed Compatibility

Is it compatible with bunk beds?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Indicates if mattress is safe to use on bunk beds.

Child / Toddler Suitability

Is it suitable for children or toddlers?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Shows if the mattress is safe for children or toddlers.

Pet Friendly Design

Is it pet friendly?

Yes 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Pet Friendly Design

Sleep Number c4 features a Pet Friendly Design, in contrast with Sleep Number p5, which does not, benefiting pet owners with the c4.

Indicates if mattress surface resists pet scratches and fur.

Heavy Sleeper Support

Does it support heavy sleepers?

No 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Heavy Sleeper Support

Sleep Number c4 does not support Heavy Sleepers, whereas Sleep Number p5 is designed to support heavier individuals, appealing to a broader range of body types.

Indicates if the mattress provides extra support for heavier individuals.

Travel & Portability 7

Roll Pack / Bed-in-Box Design

Is it a roll pack or bed-in-box design?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Indicates if the mattress is compressed and rolled into a box for shipping.

Easy Transport Handles

Does it have transport handles?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Shows if mattress includes sewn-in handles for moving.

Foldable Design

Is it foldable?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Foldable Design

Foldable Design is absent in both Sleep Number c4 and p5, reflecting their solid mattress construction.

Indicates if mattress can be folded for storage or portability.

Vacuum-Sealed Packaging

Does it use vacuum-sealed packaging?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Vacuum-Sealed Packaging

Neither Sleep Number c4 nor p5 comes with Vacuum-Sealed Packaging, so both require usual handling methods upon delivery.

Describes whether mattress is vacuum sealed for delivery.

Storage Bag

Is a storage bag included?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Storage Bag

Sleep Number c4 and p5 both do not include a Storage Bag, so additional storage accessories would be needed if desired.

Shows if mattress comes with a bag for storage or moving.

Quick Expansion Time After Unboxing

What is the quick expansion time?

24 hrs 0 Votes
Sleep Number c4
24 hrs 0 Votes
Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Quick Expansion Time After Unboxing

The Quick Expansion Time After Unboxing is 24 hours for both Sleep Number c4 and p5, allowing similar setup times.

Time needed for mattress to reach full shape after opening.

Re-Rollable for Storage/Move

Can it be re-rolled for storage or moving?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Re-Rollable for Storage/Move

Neither Sleep Number c4 nor p5 is Re-Rollable for Storage/Move, indicating they cannot be compacted for easier transport.

Indicates if mattress can be re-rolled for easier moving or storage.

Technology & Smart Features 8

Sleep Tracking Integration

Does it integrate with sleep tracking?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Sleep Tracking Integration

Both Sleep Number c4 and p5 integrate Sleep Tracking, supporting enhanced sleep monitoring.

Indicates if mattress integrates with sleep tracking systems.

App Connectivity

Does it have app connectivity?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
App Connectivity

App Connectivity is available on both Sleep Number c4 and p5, enabling smart control features via mobile devices.

Indicates if mattress has an app for customization or tracking.

Wireless Control

Does it have wireless control?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Wireless Control

Wireless Control is supported by Sleep Number c4 and p5, facilitating remote adjustments without wired connections.

Indicates if features can be controlled wirelessly.

Smart Sensor Connectivity

Does it connect with smart sensors?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Smart Sensor Connectivity

Smart Sensor Connectivity is present in both Sleep Number c4 and p5, allowing intelligent mattress adjustments.

Shows if mattress can connect with external smart sensors.

USB Charging Port

Does it have USB charging ports?

No 0 Votes Sleep Number c4

Yes 1 Votes Sleep Number p5

Shows if mattress includes built-in USB charging ports.

USB charging port on the P5 makes it super convenient to charge devices while I sleep really nice touch.

See more

Smart Home Compatibility

Is it smart home compatible?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Shows if mattress works with Alexa, Google Home, etc.

Integrated Heating or Cooling Control

Does it have integrated heating or cooling?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Indicates built-in heating or cooling control.

Anti-Snore Position Integration

Does it have anti-snore position integration?

Yes 0 Votes Sleep Number c4

Yes 0 Votes Sleep Number p5

Works with adjustable bases or sensors to reduce snoring.

Environmental & Sustainability 7

Recyclable Materials

Does it use recyclable materials?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Recyclable Materials

Recyclable Materials are not used in either Sleep Number c4 or p5, suggesting limited recyclability.

Indicates if mattress materials can be recycled.

Sustainable Sourcing

Is it sustainably sourced?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Shows if materials come from responsibly managed sources.

Carbon Neutral Production

Is it carbon neutral in production?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Carbon Neutral Production

Carbon Neutral Production is absent for both Sleep Number c4 and p5, implying no carbon emissions offset in manufacturing.

Indicates if manufacturer offsets or eliminates carbon emissions.

Biodegradable Components

Does it include biodegradable components?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Biodegradable Components

Neither Sleep Number c4 nor p5 uses Biodegradable Components, reflecting non-biodegradable mattress materials.

Shows if components naturally break down after disposal.

Renewable Energy Manufacturing

Is it manufactured with renewable energy?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Renewable Energy Manufacturing

Renewable Energy Manufacturing is not utilized by either Sleep Number c4 or p5, indicating standard production energy sources.

Indicates if renewable energy is used in production.

Take-Back / Recycling Program

Does it have a take-back program?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Sleep Number c4
vs
Sleep Number p5
Take-Back / Recycling Program

Neither Sleep Number c4 nor p5 participates in a Take-Back or Recycling Program, so end-of-life programs are not offered.

Shows if brand offers a recycling or buy-back program.

Plastic-Free Packaging

Does it use plastic-free packaging?

No 0 Votes Sleep Number c4

No 0 Votes Sleep Number p5

Confirms if packaging avoids single-use plastics.

Surveys

Because hot takes deserve votes.

Comfort Level

How comfortable is this mattress for everyday use?

Super comfy — Feels like sleeping on a cloud
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Pretty comfortable — Good for most sleep positions
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Decent comfort — Works for short naps
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
A bit too firm — Not very cozy
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Hard and uncomfortable — Feels stiff all night
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5

Durability

How long does this mattress last before showing wear and tear?

Extremely durable — Over 12 years
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Long lasting — 9 to 12 years
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Good durability — 6 to 8 years
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Moderate lifespan — 3 to 5 years
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Very short lifespan — Less than 3 years
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5

Firmness

How firm does this mattress feel when lying down?

Extra firm — Very rigid and supportive
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Firm — Strong support with little sink
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Medium — Balanced support and softness
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Soft — Gently cushioned
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Ultra soft — Sinks in deeply
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5

Motion Isolation

How well does this mattress reduce movement transfer at night?

Excellent — Barely feel any motion
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Good — Only strong shifts are felt
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Decent — Minor movements are felt
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Somewhat poor — Frequent disturbance
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Very poor — Every movement is noticeable
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5

Thickness

How thick is this mattress in height?

Extra thick — Over 15 inches
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Thick — 13 to 15 inches
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Medium — 10 to 12 inches
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Thin — 6 to 9 inches
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Very thin — Less than 6 inches
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5

Temperature Regulation

How well does this mattress stay cool at night?

Very cool — Always stays fresh
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Cool — Feels comfortable most nights
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Average — Neutral temperature
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Somewhat warm — Gets a little stuffy
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Very hot — Traps a lot of heat
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5

Ease of Setup

How easy was it to set up this mattress at home?

Super simple — Done in no time
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Pretty easy — Quick setup without stress
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Manageable — Took some effort but fine
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
A bit difficult — Needed extra help
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
A total hassle — Took forever to set up
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5

Design Appeal

How attractive does this mattress look in a bedroom?

Beautiful design — Looks high-end
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Stylish — Adds to the room look
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Decent — Matches most rooms
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Okay — Nothing special
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Plain and boring — Looks cheap
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5

Pricing

How would you rate the price of this mattress?

Great value for money
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Pretty good price
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Fair deal
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Kinda pricey
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Crazy expensive
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5

Edge Support Strength

How sturdy are the edges of this mattress when sitting or lying near the side?

Excellent edge strength — No sinking at all
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Strong edge support — Slight compression only
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Moderate edge support — Noticeable sinking
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Weak edge support — Feels unstable at sides
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5
Very weak — Collapses when sitting on edge
0 Votes
Sleep Number c4
0 Votes
Sleep Number p5

Reviews 0

The good, the bad, and the brutally honest.

Average Rating

Sleep Number
Sleep Number
Sleep Number c4
Sleep Number c4
0 / 5 0 Reviews
Sleep Number
Sleep Number
Sleep Number p5
Sleep Number p5
0 / 5 0 Reviews

Discussions 0

Thoughts, takes, and hot debates.

Awards 0

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Collections 0

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