Sleep Number P-5 VS. C-2 Review: Which Model Is Best For You?

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While the C-2 mattress is Sleep Number’s most affordable bed, the P-5 is the best seller. The decision of which mattress to get may come down to a consumer’s firmness preference.

This article will go over the construction of both mattresses, the key similarities and differences, and the takeaways consumers should know about before making a purchasing decision.

Sleep Number P-5 vs. C-2

Compare the Sleep Number P-5 and C-2 mattresses below to see which may be best for you!
Product
Firmness
Score
Sleep Number 360 p5 Smart Mattress
Multiple firmness options
3.9/5
Sleep Number 360 c2 Smart Mattress
Multiple firmness options
3.7/5

Sleep Number P-5 vs. C-2

Compare the Sleep Number P-5 and C-2 mattresses below to see which may be best for you!
Product
Sleep Number 360 p5 Smart Mattress
Firmness
Multiple firmness options
Score
3.9/5
Product
Sleep Number 360 c2 Smart Mattress
Firmness
Multiple firmness options
Score
3.7/5

Key Similarities

  • DualAir™ adjustability
  • Available in a variety of sizes – including Split King and FlexTop King
  • Individual or dual air chamber options
  • Both mattresses are made with a rayon/polypropylene fabric blend for smoothness and durability

Both come with these optional features:

  • SleepIQ® technology
  • FlexFit™ Adjustable Bases

Key Differences

P-5

  • 11” mattress profile
  • European style pillowtop design
  • 2” of proprietary PlushFit foam above the air chambers
  • 5 zones specifically designed to contour to your head/neck, shoulders, lower back, hips, and feet
  • $2599.00 for a Queen

Sleep Number 360 p5 Smart Mattress

The Sleep Number 360 p5 is part of the company's Performance Series and is comfortable, supportive, and adjustable.

Clarity Score 3.9/5
Read Sleep Number 360 p5 Smart Mattress Review

Material

Other

Trial Period

100 nights

Shipping Method

Flat-rate white glove delivery

Firmness

Multiple firmness options

Warranty

15-year limited warranty

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Pain
This bed is perfect for anyone suffering from back pain.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5

Sleep Number 360 p5 Smart Mattress

The Sleep Number 360 p5 is part of the company's Performance Series and is comfortable, supportive, and adjustable.

Clarity Score 3.9/5
Read Sleep Number 360 p5 Smart Mattress Review

Material

Other

Warranty

15-year limited warranty

Firmness

Multiple firmness options

Shipping Method

Flat-rate white glove delivery

Trial Period

100 nights

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Pain
This bed is perfect for anyone suffering from back pain.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5

Sleep Number 360 p5 Smart Mattress

The Sleep Number 360 p5 is part of the company's Performance Series and is comfortable, supportive, and adjustable.

Clarity Score 3.9/5
Read Sleep Number 360 p5 Smart Mattress Review

Material

Other

Firmness

Multiple firmness options

Trial Period

100 nights

Warranty

15-year limited warranty

Shipping Method

Flat-rate white glove delivery

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

Couples
This bed has great motion isolation so you will not feel your partner tossing and turning at night.
Back Pain
This bed is perfect for anyone suffering from back pain.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.7/5
P5construction
Source: SleepNumber.com

C-2

  • 8” mattress profile
  • Mattress top has a standard knit cover
  • $1099.00 for a Queen

Sleep Number 360 c2 Smart Mattress

Sleep Number’s C2 Classic Series model is the most basic and standard of Sleep Number mattresses. It does not come with a lot of bells and whistles, but that’s not always a bad thing. This mattress seems to be a hit with budget-friendly folks, mostly couples, who want the Sleep Number experience.

Clarity Score 3.7/5
Read Sleep Number 360 c2 Smart Mattress Review

Material

Other

Trial Period

100 nights

Shipping Method

Flat-rate white glove delivery

Firmness

Multiple firmness options

Warranty

25-year limited warranty

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

Back Sleeping
Ideal for average weight back sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.6/5

Sleep Number 360 c2 Smart Mattress

Sleep Number’s C2 Classic Series model is the most basic and standard of Sleep Number mattresses. It does not come with a lot of bells and whistles, but that’s not always a bad thing. This mattress seems to be a hit with budget-friendly folks, mostly couples, who want the Sleep Number experience.

Clarity Score 3.7/5
Read Sleep Number 360 c2 Smart Mattress Review

Material

Other

Warranty

25-year limited warranty

Firmness

Multiple firmness options

Shipping Method

Flat-rate white glove delivery

Trial Period

100 nights

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

Back Sleeping
Ideal for average weight back sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.6/5

Sleep Number 360 c2 Smart Mattress

Sleep Number’s C2 Classic Series model is the most basic and standard of Sleep Number mattresses. It does not come with a lot of bells and whistles, but that’s not always a bad thing. This mattress seems to be a hit with budget-friendly folks, mostly couples, who want the Sleep Number experience.

Clarity Score 3.7/5
Read Sleep Number 360 c2 Smart Mattress Review

Material

Other

Firmness

Multiple firmness options

Trial Period

100 nights

Warranty

25-year limited warranty

Shipping Method

Flat-rate white glove delivery

Price Range

$$$$$

We recommend this mattress for the following sleeper types:

Back Sleeping
Ideal for average weight back sleepers.

Financing Options

Financing options are available for this mattress.

Average Customer Rating
4.6/5
C2MattressConstruction_SL
Source: SleepNumber.com

What Happened During Several Live Chat Sessions

After speaking with Sleep Number Customer Service representatives, I learned about a few extra details and clarifications that may help you decide between a P-5 or a C-2 mattress.

  • Mattress Top. Customer service representatives told me that the C-2 has a standard knit mattress top, while the P-5 cover is a more luxurious European-style pillowtop.
  • Popularity. The P-5 model is Sleep Number’s most popular bed. The salesperson I spoke to at a Sleep Number store said it had a good amount of balance between cushion and natural firmness from the air chambers.

Which Should You Pick?

P-5 if…

  • You Want Some Cushion. One of the reasons the P-5 is a best-seller is because customers feel that it has a thick enough layer of foam to balance out the firmness of the air chambers. The P-5 has a 2” PlushFit foam layer and the C-2 has no foam layers at all inside the mattress.
  • You Like A Mattress with Pillowtop. The P-5 comes with a nicer European-style pillowtop mattress, and the C-2 will be more of a standard knit mattress top (less fancy).

C-2 if…

  • You Like A Firm Bed. The C-2 is as standard as you can get with a Sleep Number bed. Aside from some cushioning in the mattress top, there is no other comfort layer between you and the air chamber, making it a fairly firm experience overall. You can adjust firmness with your Sleep Number setting but more likely than not you’re going to be sleeping in a firm bed.
  • You’re On A Budget And You’re Crafty. Customers weren’t shy about sharing their workaround with the lack of foam layer in the C-2 mattress. Many purchased foam mattress toppers or mattress pads to put into their mattress for added cushion.

My Personal Opinion

There is a pretty significant price difference between the C-2 and the P-5 bed. If you’re purchasing a Queen size mattress, that price difference is $1,200.

I wanted to break down what you’re getting if you spend an additional $1,200 for the P-5:

  • 3” of mattress height
  • 2” of proprietary PlushFit foam with 5 zones specifically designed to contour to your head/neck, shoulders, lower back, hips, and feet
  • European-style luxurious mattress pillowtop

It seems that you are essentially paying for extra cushioning, in the form of a pillowtop mattress top and 2″ of PlushFit foam with pressure-relieving features.

The mattresses are both knit with the same rayon/polypropylene fabric blend and offer the same options to purchase, including the Sleep IQ Technology and FlexFit Adjustable Base.

After reading other reviews, I’m inclined to save the money and go with the C-2 mattress. Personally, I would spend the extra savings on one of the optional add-ons, as well as a 2” or 3” thick mattress topper and nice mattress pad for the bed to add cushion.

Compare all Sleep Number beds here

Gravatar for Katie Golde

Katie Golde

Katie manages the day to day operations of the Mattress Clarity news site and reviews sleep products in addition to writing and editing sleep news. She hails from Austin, where she lives with her growing family. She is a Certified Sleep Science Coach and has a master’s degree in Journalism from Northwestern University and has a background in health and science content. Her work can be found in print and online publications like Discover Magazine, USA Today and The Huffington Post.