Sleep Number Bed Reviews – What You Need To Know

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Sleep Number may be best known for its adjustable air beds, which are built in a way that allows you to change the firmness and support of the bed with the touch of a button. The beds tend to be popular with couples because they can be made with dual air chambers, so each person can adjust to their preferred setting without compromising.

What else do you need to know about Sleep Number beds and how will you pick the best one for you? Don’t worry, we’ve got you covered with everything you need to know about Sleep Number, including who makes the beds, what special sizes, features, and options they offer. Don’t forget that in-home trial period and warranty, too.

Who Makes Sleep Number Beds?

Sleep Number beds are made by Select Comfort Corporation (Select Comfort), which is a public company. They design, manufacture, market, and distribute beds, proprietary beds, and other sleep-related accessory products and are headquartered in Minneapolis, Minnesota.

Select Comfort was founded by Robert Walker and JoAnn Walker in 1987. Today, the company has around 3,700+ employees and was listed as the 87th best Small Company in America by Forbes.

Select Comfort has two manufacturing plants – one in Irmo, South Carolina and the other in Salt Lake City, Utah – which distribute products in the United States and Canada.

C-2 model – source:

What The Numbers Mean

Sleep Number is all about beds, but in case it wasn’t obvious, they’re also all about numbers.

Your Sleep Number number (also called your Sleep Number setting) corresponds to your ideal firmness and support. Numbers range from 0 to 100 and the higher your number, the more air/firmer your Sleep Number bed will be.

Likewise, the lower your Sleep Number, the less air will be in your air chamber and the softer your bed will be.

Sleep Numbers are super personal and can change. If you determine what you think your setting is in the store and go home and don’t like it, there is no reason you can’t adjust your number till you find what suits you best.

The Most Popular Sleep Number?

The most popular Sleep Number is in the 35-40 range. When I asked a representative why this is range is so popular, I was told: Sleep Number is really based on personal preference and what is most comfortable for each person, the 35-45 range gives great support and pressure relief for most.

How Do I Find My Sleep Number?

Your Sleep Number can be determined either before or after purchasing a Sleep Number bed. It will really all come down to what feels “right” to you.

If you want to know your number before purchasing a mattress, you can visit your closest Sleep Number store and have a sales representative walk you through the process. At the store, you will rest on a Sleep Number bed and they will inflate/deflate the floor model till you find a comfortable spot.

After you purchase your Sleep Number bed and it’s delivered and set up, you can use the remote it comes with to start finding your Sleep Number. Instructions are provided Sleep Number’s website; some of the steps include asking you to lie in your “waking up” sleep position and letting the mattress to go from soft to firm and back from firm to soft. This way can identify which firmness level is best for you.


To read more about how to find your Sleep Number, click here.

Bed Construction

Enough about numbers, let’s talk about what’s actually in a Sleep Number bed.

Air Chambers

All Sleep Number mattresses come with one or two air chambers. These air chamber(s) use a pump to bring in air that will inflate or deflate the chamber based on your Sleep Number setting. Sleep Number calls this feature “DualAir technology.”

The higher the number (it goes up to 100) the firmer your mattress will be. When you have two air chambers, each person can adjust the amount of air in their air chamber based on their personal preference.

Almost every model comes with one remote that allows you to program your Sleep Number. The I-10 model is the only one that comes with two remotes and is only available with dual air chambers.

Air chambers make up the base of all Sleep Number models except for the Innovation Series beds, that feature 1” or 2” foam base pads. These pads are used to add height and support, according to Sleep Number Customer Service representatives.

Comfort Foam

Except for the C-2 Classic Series model, all Sleep Number mattresses come with at least one layer of comfort foam that rests above the air chamber(s) and below the mattress top.

Sleep Number offers a variety of different comfort foam layers in a range of densities and thicknesses from 1.5” inches thick to 4” inches thick.

The higher the series, the more cushion/thicker layer each mattress will have. For example, the C-2 model will be the firmest (with no foam layer) while the I-10 model will have the most cushion (4” layer).

Some mattresses offer PlushFit foam or enhanced foam while others will have Memory Foam layers.

I-8 construction; source:
Mattress Tops

Just like comfort layers, Sleep Number beds come in a range of mattress tops. Pillowtop mattresses start with the Performance Series models and expand from there.

In some cases, mattress tops can be accessed by a separate zipper on the mattress. The I-8 and I-10 models offer a Duvet-style mattress top, the most luxurious, and can be accessed by a second zipper on the mattress.

Aside from these two models, all other mattresses have one zipper in which you can reach all of the layers and the air chamber(s) at once.

Sleep Number Series/Model Breakdown

Sleep Number offers several models broken organized into four categories: Classic, Performance, Memory Foam and Innovation.

Each series essentially builds off the other. The Classic Series beds, the C-2, C-4 and CSE, offer the most standard options while the Innovation Series have the largest, thickest layers and most added features.

Classic Series:

The Classic series models are the most basic mattresses. They will have the firmest feel to them because there is the least amount of layers between the air chamber and your mattress top.

DualAir ™ AdjustabilityYesYesYes
Profile Height8"10"10"
Comfort Layer ThicknessNone1.5"2"
Zones of Contouring SupportNoneYes, 3 ZonesYes, 5 Zones
FabricRayon/polypr. blendPolyester/polypr. blendRayon/polyester blend
Cooling FeatureNoneNoneNone
SleepIQ Technology IncludedNoNoNo
Queen Price$899.99$1,599.99$1,899.99

Click to read full reviews of the C-2, C-4 and CSE models.

Performance Series:

The Performance series offer pillowtop style mattresses and have thicker comfort layers to be more pressure relieving. The most popular model, the P-5, is a Performance Series bed known for its great balance of firmness and contoured cushion.

DualAir ™ AdjustabilityYesYes
Profile Height11"12"
Comfort Layer Thickness2" PlushFit3" PlushFit
Zones of Contouring SupportYes, 5 ZonesYes, 5 Zones
FabricRayon/polypropylene blendrayon/polyester blend
Cooling FeatureNoneYes, moisture wicking fabric
SleepIQ Technology IncludedNoNo
Queen Price$2,099.99$2,599.99

Click to read full reviews of the P-5 and P-6 models.

Memory Foam Series:

The Memory Foam series is a bed with a memory foam comfort layer. This series tends to be recommended to those who know they enjoy sleeping on memory foam but are looking for adjustability with the DualAir technology and FlexFit Adjustable Base options.

DualAir ™ AdjustabilityYes
Profile Height11"
Comfort Layer Thickness4" Total: 3" CoolFit Memory Foam & 1" High Resiliency foam
Zones of Contouring SupportNone
FabricRayon/polyester blend
Cooling FeatureYes, CoolFit™ memory foam is enhanced with gel technology
SleepIQ Technology IncludedYes
Queen Price$3,499.98

Click to read full reviews of the M-7 model.

Innovation Series:

Innovation series the top of the line set of mattresses with duvet-style pillow tops and In-Balance temperature balancing material built into the covers.

DualAir ™ AdjustabilityYesYesYes
Profile Height13"15"14"
Comfort Layer Thickness3" PlushFit4” Reverse Memory Foam/PlushFit foam layer3" Exclusive Comfort Layer
Zones of Contouring SupportYes, 7 ZonesYes, 7 ZonesYes, 5 Zones
FabricPolyester/polyprop. blendPolyester/polyprop. blendPolyester/polyprop. blend
Cooling FeatureOutlast Technology in TopOutlast Technology in TopYes, enhanced foam layer
SleepIQ Technology IncludedYesYesYes
Queen Price$3,499.98$4,999.99$4,899.98

Click to read full reviews of the I-8, I-10, and I-LE models.


While sizes vary depending on the model, most Sleep Number beds come in standard sizes that will fit most traditional frames and box springs:

Twin38” x 75"
Twin Long38” x 80”
Full54” x 75”
Double54” x 75” (same as Full)
Queen60” x 80”
King76” x 80”
California King72” x 84”

Sleep Number beds also come in some unique and specialized sizes: Split King and FlexTop King (and Cal King)

Split King76” x 80”split all the way to the foot of the bed
FlexTop King76” x 80”split only at the head of the bed
FlexTop California King72” x 84”split only at the head of the bed

The Split and FlexTop mattresses are best paired with a FlexFit Adjustable Base. For example, with a Split King you can raise/lower just the head and feet of your side of the bed. If your partner is snoring, you could raise the head of just their side with a FlexTop.

Modular & Adjustable Bases

Since Sleep Number is all about individualized comfort, it is not surprising that they also make different types of bases for your mattress.

Sleep Number makes one modular base and three different adjustable bases for their mattresses: FlexFit 1, FlexFit 2 and FlexFit 3.

Note: You do not have to use Sleep Number’s modular or adjustable bases with your Sleep Number mattress. You need to have a flat and sturdy surface for your mattress or you may potentially void your warranty.

Related: Best Mattresses Overall

Modular & Adjustable Base Descriptions

Modular Base:

This modular bed base is a standard base that is designed to be both sturdy and durable. Sleep Number says it will last 20 years or more and prevent sagging in your mattress. It is also easy to get through narrow spaces and set up in smaller rooms so it could be ideal for apartment living.

FlexFit 1:

Raises the head of your bed; one remote will let you elevate the bed and adjust your Sleep Number in the same device.

FlexFit 2:

The most popular FlexFit Base. It raises the head of your bed like the FlexFit 1 and offers the following additional features:

  • A “Zero Gravity” option that raises the head and foot in a way that leaves you feeling weightless
  • Partner Snore™ technology allows one partner to raise the other partner’s head (Available with Split King, Split California King and FlexTop® King beds.)
  • Timer feature changes the raised part of your bed at a certain time in an effort to shift you into a different position at a designated time.
FlexFit2 Adjustable Base with mattress – source:
FlexFit 3:

Includes all of the features in FlexFit 2 and the following features:

  • Turn on a soft light under the bed and control your nightstand lamps with one button
  • Massage soothes tired muscles and leaves you feeling rejuvenated

The FlexFit bases also come in two types: Silhouette and Traditional. Here is the description I got from a representative: The silhouette is an optional upholstered surround for our FlexFit adjustable bases. The Traditional option does not include the upholstered frame, and you will be able to see the legs underneath like a regular frame. If you choose the Traditional option, we recommend purchasing our Smart™ Skirt Bed Skirt.

***From Sleep Number: The FlexFit™ adjustable base is not covered under our 100-Night In-Home Trial and is non-returnable. Delivery and setup outside the standard Comfort Service. When purchasing online, you must select the Home Delivery option. Standard UPS shipping is not available for adjustable bases.***

SleepIQ Technology

SleepIQ Technology senses how you sleep and provides data that lets you make modifications to optimize your night’s sleep. It can let you know what your best sleep hours are and help you find your Sleep Number setting.

It also connects to a number of health and wellness apps*, including:

  • Fitbit
  • MapMyFitness
  • Apple Health
  • Microsoft Health
  • Nest

*This list was provided by a Customer Service representative and is subject to change.

Only some models come with SleepIQ Technology included in the mattress, but the technology is available to be added to any Sleep Number bed.

I-LE model – source:

How To Choose The Right Model

There are several resources and ways to decide which mattress (and/or base) is right for you.


Sleep Number’s website offers details, photos, FAQ’s, and images of each Sleep Number bed. They let you compare models across series and have a Live Chat feature that should answer virtually any question. You can also get a quote or make a purchase online and through the Live Chat feature.


Sleep Number sells their beds in Sleep Number stores nationwide. Sleep Number Customer Service was unable to tell me exactly how many stores there are but estimated somewhere near 400.

Sleep Number stores can be found across the country, including Alaska and Hawaii. There are no international stores at the moment.

A sales representative at the store can help you find your Sleep Number and guide you towards the right model for you. They have a variety of beds out and available for testing if you want to feel one before you make a purchase.

Beds come with a 30 or 100 night trial period plus a 25-year limited warranty.

Who Might Want A Sleep Number?

  • People who like air beds- First and foremost, the core of the Sleep Number bed is the adjustable air mattress. If you have had positive experiences with air beds, you will probably like what Sleep Number has to offer – especially with all of its adjustable features.
  • Couples who sleep differently– If you like a firmer mattress and your partner prefers more cushion, you may like Sleep Number beds. Most beds can be made with dual air chambers that allow each person to decide how firm their side of the bed will be. Some models – like the I-10 – even have comfort layers that can be adjusted on each side.
  • People with physical injuries or medical conditions– Whether it’s a bad back, occasional heartburn or recovery from an accident, Sleep Number’s adjustable mattress, and FlexFit bases allow people to get comfortable easily and then re-adjust when they’re back to normal.
  • People who want options and flexibility– Individualized comfort is the name of Sleep Number’s game, so it’s no surprise that people who want to be able to change things up on a nightly basis will like these models. You can adjust the firmness, pick a model whose layers fit your needs – some can even help you sleep cool – and you can add a FlexFit base for even more sleeping options.

Who Might Not Want A Sleep Number?

  • People who love memory foam– Depending on what is available, there are one – possibly two – Sleep Number models that offer a comfort layer made with memory foam. If you know you love memory foam you will be limited on Sleep Number beds, which are – at their core – adjustable air beds.
  • Couples who like to sleep close together– One of the biggest complaints from couples is that a sagging/division is created in between the dual air chambers on the bed. Couples who like to sleep close or cuddle in the center of the bed feel as those they are sinking into the middle of the bed.
  • People who do not want to deal with technology– If you want a simple tech-free bed, Sleep Number may not be for you. In order to adjust your Sleep Number, you will need to use a remote that will signal a pump to inflate/deflate air into the air chamber(s) in your mattress to adjust firmness. If you want insight into your sleep habits, you would need to utilize your SleepIQ technology, which can be connected to other apps you may have.
  • People on a tight budget– Of the eight models currently available at Sleep Number, only one is available for under $1,000 at a Queen size (at full price). Those wanting additional comfort layers, cooling features and maybe a specialized FlexFit base will need to be ready to spend upwards of $5,000 for a Queen bed with added comfort features.
M-7 model – source:

Common Praise

  • Couples love being able to personalize the firmness of their side of the bed. The dual air chambers available on most models (and depending on size) means that someone who prefers a firmer bed doesn’t have to compromise with a partner who likes more cushion.  If one person like to sleep on their side and another doesn’t, they have a great solution here.
  • People with back problems or medical issues that require them to sit up at different points love the flexibility of Sleep Number beds. They can adjust the firmness of their bed for a couple nights if needed and can raise/lower the head of their bed with a FlexFit Adjustable Base depending on their current needs.
  • There was heavy praise for the longevity and durability of the Sleep Number bed. People came back to Sleep Number’s site to say they’ve had their bed for 10+ years and they are still comfortable. Of course, not everyone was able to stay comfortable in their bed for a decade without experiencing issues, but people tended to have their Sleep Number bed for a long time.

Common Complaints

  • As with all products, some people just did not find their Sleep Number bed comfortable. These types of reviews are common and typically all come down to personal preference. If you are unsure about investing in a Sleep Number bed, go to a store and try one in person to see what you think.
  • People reported being frustrated with the limitations attached to Sleep Number’s 100 Night Trial Policy and their 25 Year Limited Warranty. People complained that they purchased an adjustable base without knowing that it wasn’t a part of the trial and couldn’t be returned. People were also upset that they had to pay a portion of the cost to fix their Sleep Number bed after the first two years of their 25-year limited warranty. It would be worth reading both the policy and warranty in full before making a purchase.
  • One popular complaint was a sagging or slight valley created in the mattress between the two air chambers. This seemed to be a bigger complaint about models that had thicker comfort foam layers. Couples expressed disappointment in not being able to cuddle in the middle of their bed without feeling like they were falling/sliding into the center.

100 Night In-Home Trial Period

Sleep Number allows you take your Sleep Number mattress home to try it out for a certain period of time and under certain conditions. This is sometimes referred to as the “100- Night In-Home Trial” or the “In-Home Trial Policy.”

Here are the basic conditions of the trial period. Be sure to read Sleep Number’s policy in full on their website.

  • All new Sleep Number beds and DualTemp layers are covered and the trial period. The trial begins the day your bed or layer arrives and lasts for 100 nights, except for the it™ bed, which is 30 nights.
  • Sleep Number says it will take about 30 days for your body to adjust to your new mattress and find your ideal Sleep Number. If you are not satisfied you must contact them by the end of the 100 night trial period (or 30 night if using the it™ bed,) to arrange the return of the product.
  • The FlexFit™ adjustable base is not covered under our 100-Night In-Home Trial and is non-returnable.

25 Year Limited Warranty

Sleep Number beds (from their Core Line of mattresses: C-2, C-4, CSE, P-5, P-6, I-7, I-8, I-10, and I-LE.) and their modular bases are covered in the 25-year limited warranty. This excludes the it™ bed.

It is highly recommended that you read the full warranty policy on the website. There are some important insights and we’ve listed a couple here:

  • Sleep Number will essentially cover the cost of a manufacturing or product defect in full for the first two years of the warranty.
  • There are several things you can do to void your warranty. Some of these include staining/damaging your mattress with liquids or fluids, ripping off the legal tag, opening the remote and forgetting to keep your original receipt (to name a few).
  • After the first two years, you are responsible for a portion of the price needed to for any repairs or replacements to your mattress or base.

For more details on the 25-year limited warranty, read our post here.

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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 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.

54 thoughts on “Sleep Number Bed Reviews – What You Need To Know

  1. Now – Sleep number MAY be the best rated bed (and) it may actually be a good bed… However, My experience with the P5 was horrible. From the first week the “monitoring” of your sleep stopped working. Then my side of the bed would deflate during the night and I would wake up in the morning in a deflated ditch. Yes, I called and Yes Sleep number sent a replacement bladder out post haste (except) that wasn’t the problem. The problem is somewhere in the air/fill lines or control (which) is only warranted for 1yr. So, I suffered with this bed for 5 LONG years. It tortured me and was the worse bed I have EVER had. In the last year I have slept on the floor or couch more than I have on the sleep number. Considering the price I paid for this is why I waited so long to purchase another bed because it was a budget buster north of $3k. I thought 5yrs ago (spend) a little more (get) a great bed and save money in the long run (WRONG)!!!! Now I will concede that IF the sleep number works (it) may possibly be the best bed ever (however) I wouldn’t know because mine was a POS from the start.

    ON TOP OF IT… ETA IS TOTALLY OFF; ONCE TELLING ME THEY’D BE HERE @ 2 AND THEN CALLING TO SAY THEY CHANGED THEIR MINDS AND IT WAS 12-30 WHILE i HAD TO GO OUT FOR SOME THINGS. OTHER TIME COMING @ 4 WHEN THE TIME WINDOW WAS 10-2!!!!! After the set up, I called b/c the bed was not correctly connected to internet. not only could the imcompetant tech not help me, but he did not even ATTEMPT TO FIND SOMEONE who could answer my ?’s…

  3. Is the warranty transferable? I may be inheriting my brother’s I8 sleep number. Will I be able to have repairs / repl done under warranty after the 2 years?

    • Hi Gail, how long have you had your bed? I’d recommend contacting Sleep Number about both issues. If it’s a defect in workmanship, especially for the remote, I believe your warranty should have you covered. Bed sagging is a common complaint with Sleep Number beds so it would be worth asking them what they can do for that as well.

    • My remote didn’t work, changing batteries didn’t help, either…had to replace air pump/motor and get new remote. Layer of foam is torn and too expensive to replace. Limited warranty is limited. i have no idea what is covered, but it isn’t much!

  4. We bought a SleepNumber bed about two years ago and we’ve got nice valleys where we both sleep – two indentations in the mattress that refuse to go away (even after pumping up the mattress) the …my wife and I are about 160 lbs. apiece so I rule out excess weight. What can be done about to eliminate this problem? In general, we haven’t been overly pleased with this expensive product.

    • Hi Doug, if the foam in your bed is breaking down and losing its support, it may be eligible for replacement under your prorated limited warranty. I would first suggest reaching out to Sleep Number about it because I believe they will send you a guide to check and see how big the two indentations are. That may qualify you for some replacement parts. My first suggestion would be to go through Sleep Number so that you don’t risk voiding your warranty by trying something on your own. Good luck!

    • Hi Diane, unfortunately, I don’t think Sleep Number offers free shipping/delivery/set-up on their mattresses, even during promotional periods. I do believe they offer free shipping on bedding from time to time. I hope that helps!

    • Hi Kathy, great question! Sleep Number says that the “zones of contouring support” are portions of the foam that differ in density. So yes, they are built into a foam comfort layer. Typically the zones focus on areas of the body that require more support or additional pressure relief. You’ll see them in the head/neck, shoulders and hip regions of the mattress. I hope that helps answer your question!

  5. I am curious if you know the answer to this question. If you have a dual flex control on a queen bed, what happens to the sheets if one is up and one is down?

    • Hi Sheila, it’s my understanding that you can only have dual flex control on a Split King or a FlexTop King bed. Sleep Number has special sheets that are made for FlexTop beds since it’s exclusive to them, but you can buy sheets for Split King beds in other places. Hope that helps!

  6. Thank you Katie….needed all the information you provided. Am on a deadline to get my husband out of hospital and into a setting of comfort – while recovering from major spinal surgery. You have done my research for me, and saved me so much time!!! Many thanks

    • s I got the xl twin mattress for my hospital bed. I sleep good first night when i woke up I couldn’t get out of bed my back hurt so bad .I called the number on the book she sent a box and a man come and did something and told me how to try different numbers .but so far my back hurts every time I sleep on it I’ve tried 100 down what is best setting for your back? I have email but don’t know how to answer it I’m 75 years old wonted to take classes but they don’t have them around here

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