Temperature balancing innovation

Sleep Number ® i8 bed is rated 4.0 out of 5 by 257.
Rated 5 out of 5 by from Great sleep After thinking I'd never sleep through the night again I found my sleep number i8 and now I sleep like a dream. No more back pain and so much energy in the morning. I love my bed.l❤️
Date published: 2017-01-17
Rated 5 out of 5 by from Wonderful mattress I bought this a month ago after sleeping on one at my daughter's house. I suffer chronic pain. Since I bought this mattress, I wake up with less pain and I've actually slept through the night a couple of times which I haven't done in years. I love it.
Date published: 2017-01-11
Rated 5 out of 5 by from Excellent bed I am very happy with this bed,since I bought this bed I have not have any charlie horses in my legs.I get a good nights sleep.My sleep number is 45 and my wife is 35.We love are bed.
Date published: 2017-01-06
Rated 5 out of 5 by from Replacing our i5000 after 10 years! We replaced our i5000 after 10 years, because we wanted too! We relocated the i5000 to our cabin for more years of use.
Date published: 2016-12-30
Rated 5 out of 5 by from Love it!! We've now had our new mattress for about a month. This is our second Sleep Number mattress we've purchased. Our first was 8 years ago and upon moving, we decided it was time for a bigger bed. We loved our old mattress but we are in LOVE with the new one! Sleep Number has made vast improvements in their mattresses in the last 8 years. We tried a variety of their models in store before deciding on this one. It's very comfortable and provides the right amount of support. We set up the bed ourselves and found it to be a relatively easy process (it worked best to have 2 people put together a king size). The Sleep IQ feature was difficult to set up at first. We had issues getting everything to sync properly and tried multiple times before it finally worked. It's an interesting feature, but I wouldn't say that we would ever pay the money specifically to have this on a bed (it was included with this mattress).
Date published: 2016-12-21
Rated 5 out of 5 by from Pain free sleep I have tried many bed before we bought the i8 bed with the adjustable base. I suffer from chronic back pain and being able to adjust the firmness and position I now get a restful night of sleep. I used the sleep IQ to find the right settings and now wake up almost pain free.
Date published: 2016-12-18
Rated 5 out of 5 by from Enjoying and the flexible features We have been sleeping on the sleep number mattress for just over a month and very satisfied with the experience.
Date published: 2016-12-14
Rated 5 out of 5 by from Love my bed! We bought this mattress less than a month ago and am so happy. The bed is great and we are very happy with our purchase.
Date published: 2016-12-12
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i8 Sleep Number® bed

This bed offers an exclusive PlushFit® layer for enhanced comfort and temperature balancing sleep surface that keeps you from sleeping too hot or too cool.


DualAir adjustability

Allows you to adjust firmness, comfort and support on each side of the bed to your ideal Sleep Number® setting, and change it whenever you like.

SleepIQ® technology

Using sensors inside the bed, SleepIQ® technology tracks your breathing, heart rate and movement. Every morning your SleepIQ® score shows you exactly how you slept, so you can learn and make adjustments.

Temperature balancing sleep surface

Absorbs excess heat and releases it as you cool, so you sleep just right.


Duvet-style pillowtop is measured from the base to the highest loft of the mattress.

PlushFit foam comfort layer

Exclusive pressure relieving foam is soft and resilient for enhanced comfort.

7 zones of contouring support

Superior pressure relief and gentle support where you need it most: head, shoulders, lower back, hips, knees, lower legs, and feet

Soft, breathable knit fabric

Polyester/polypropelene blend is soft and breathable so you sleep comfortably.


FlexFit Adjustable Bases

Upgrade to an adjustable base to raise the head and/or foot of the bed and read, watch TV, or surf the web in ultimate comfort. Includes options you'll love, such as Partner Snore technology, available when you customize your bed.

Sleep Number
Adjust Your Idea of Comfort
Firmer or softer? You both get to choose your ideal level of firmness, comfort and support–your Sleep Number® setting–and change it whenever you like.
SleepIQ® technology Included
The Sleep Number® bed with SleepIQ® technology inside tracks how well you sleep each night, giving you personal insights into your sleep.
Sleep Number
Discover your ideal bedtime, wake up time and how many hours you need for your best sleep.
The bed connects to your favorite apps so you'll know how life affects your sleep and how sleep affects your life.
SleepIQ® technology on the inside of the bed tracks how well you sleep each night
You'll learn what affects your sleep and the changes you can make to improve your SleepIQ score.
Sleep Number
Add a FlexFit adjustable base to any mattress.
Read, watch TV and surf the web in ultimate comfort. Our FlexFit adjustable bases include choices you’ll love, like Partner Snore technology and soft under bed lighting.
Sleep Number
Feel, see, and hear the difference
You'll only find Sleep Number® at a Sleep Number® store

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Product Q&A

Furniture not included.
Due to the cost of doing business in California, Performance, Memory Foam and Innovation Series Twin and Full mattresses incur a $50 surcharge; Queen and King mattresses incur a $100 surcharge. The surcharge will be added in your shopping cart after you enter your shipping address. Picture may not represent options selected.