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Sleep Number c4 Bed Reviews

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The c4 bed offers a euro-top and adjustable air system like other Sleep Number mattresses. Overall, the comfort layers provide a decent amount of support over the air bladders. For a competitive entry pricepoint, most sleepers like this bed. Some have had issues with the durability.

Mattress Score

Overall Score 7.6/10
Customer Satisfaction: 7.7/10
Price Value: 7.6/10
Starting Price: $1299

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Sleep Number c4 Bed's Firmness

Browse Sleep Number c4 Bed Reviews

We just purchased the C-4


We just purchased the C-4 Sleep Number mattress that is replacing a brand new since January of this year, Tempurpedic Extra Firm Mattress. My husband and I no longer wake up in the morning with an achy back! Wonderful mattress

Bought a Sleep Number


Bought a Sleep Number after my husband had completed a sleep study on one. We have enjoyed it, and find our sleep is more sound. My husband's snoring has even become less and less.


We tried a memory foam


We tried a memory foam bed that was about $1000 more than the sleep number. My husband loved it but I hated it. So we returned it and went to a sleep number. We both like the sleep number better. We did get the SleepIQ. It seems to be a waste of money. We love technology and data. It gives very vague data. You aren't able to dig into the data like we expected. We were also under the impression it might give you suggestions based off of the data it was receiving. But it is just tip in general, not specific to you. If you want to spend the extra money, upgrade the bed, don't buy the SleepIQ.


We purchased this sleep number


We purchased this sleep number about a month ago and we both are finally sleeping throughout the night. Almost all the kinks and pains are gone. It’s made a huge difference in our mornings.


I tried it at a trade show in the early 2000’s


I tried it at a trade show in the early 2000’s. I wanted one but the price scared me. Here I am after 3 back surgeries. I needed a bed I could adjust to me instead of adjusting me to a bed.


I bought the new bed last month


I bought the new bed last month cause my old one was just wore out. The new pump is so silent and I like the IQ system.


We’ve had ours a month


We’ve had ours a month or two, and have both been sleeping better and waking up without aches or pains. I’m current fighting some sort of bug, so I decided last night to soften my side of the bed because I CAN! When I’m feeling better, I’ll go back up. And if we reach a point where getting into or out of bed is difficult due to aging, we can inflate the bed to make it easier. If we’d decided on a firmness when we bought some other bed, then decided we didn’t like it (and it would have to be the same for both of us), we would have to return the whole thing for another one—if that was even an option. Great price—ANY bed in the Sleep Number family is a wise investment, and the salespeople didn’t pressure us to move up to a more expensive model.


I’ve had the bed for a month


I’ve had the bed for a month and haven’t had a good night of sleep yet. Tried different settings and nothing works!! Sleep number beds are not worth the money. Very disappointed.


So far my sleep has improved


So far my sleep has improved..We are happy with our purchase


I bought my sleep number mattress


I bought my sleep number mattress a month ago and it is the best mattress I ever bought.


I have only had my sleep number


I have only had my sleep number bed for about a week, but I feel like I've been sleeping on a cloud. My back use to ache terribly when I got up each morning, but no more! I couldn't be more pleased :)


We have had our bed for almost two months


We have had our bed for almost two months now and it was the best decision we ever made. My wife has her Sleep number set, but I have two settings. Depending on my back will depend on what my number is, it’s either a 45 or 65 and I Love the zero gravity setting. It’s been a long time since I slept so well and throughout the night.


I just purchased my first SleepNumber


I just purchased my first SleepNumber mattress, a C4. It is very comfortable and easy to use. Highly recommend.


My exercise productivity


My exercise productivity has increased dramatically since purchasing the bed. My lower back issues have seemed to be improving every day! I highly recommend this product.


I purchased my Sleep Number mattress about a month ago


I purchased my Sleep Number mattress about a month ago and have been very happy with my new purchase! I sleep all night long and feel rested when I wake up in the morning. I plan to replace all the mattresses in my home with Sleep Number mattress so we will all wake rested and happy!


We have been thinking about a new mattress


We have been thinking about a new mattress and just by chance, we happened to walk by a Sleep Number store. The salesman was so helpful explaining everything. He asked a lot of specific questions, such as amount of back pain, neck pain, etc. The only question I wished he had asked was about leg pain. After a little misstep about letting us know when the delivery would be, set up could not have gone any better. The videos and explanations prior to delivery were so helpful. By the time the bed was set up, we felt that we knew what we needed to know to get started. The first night, my side of the bed worked great but I struggled with my husband's. It was a week later when I was still having trouble that my husband and I checked the hose and found that it had been kinked when it was installed. Once that was fixed, it has worked like a charm. The setting that was given to us when we were in the showroom have turned out to be pretty close to the number we are using. It is so great to have every part of your body supported throughout the night. No matter how you toss or turn throughout the night, that support automatically adjusts. The quality has improved as the weeks have gone by. I am using a pillow that I have been pleased with prior to buying this mattress but I would strongly recommend looking at the pillows suggested by your sales person. I am considering investing in one of the sleep number pillows. I definitely would recommend a sleep number system to anyone looking at investing in a new mattress.


I bought my C4 bed about a year ago


I bought my C4 bed about a year ago and I have loved it. I love that it molds to my body. I also love the adjustable base that I bought with it.


Seems some of these people that have existing back pain


Seems some of these people that have existing back pain were expecting a miracle in relief on a bed. I have looked at so many major stores and comparred mattresses and its not prices its quality and comfort, and you can't beat "Sleep Number". I am going tomorrow to purchase my first Sleep Number Bed. Not sure which one? Having two major lower back "Fusions", and nerve damage now, just looking for a quality bed to help relieve some of that pain and I know "Sleep Number" is it. Will up date people in the future. I can't afford Big Money, so the Sale is fine with me. Thanks Sleep Number for making QUALITY, and nice salepeople that know what they are talking about.


I bought the c4 for my daughter


I bought the c4 for my daughter, who suffers with hip joint pain. Because she can change the density as needed, it's been a well needed comfort. Thank you!


I’ve bought this bed 2 months ago


I’ve bought this bed 2 months ago and it’s the best bed ever!!!! 2 thumbs up


I have the C4 with sleep I and have had it for a year now


I have the C4 with sleep I and have had it for a year now. I get the best sleep and wake up without aches and pains that I feel from traditional mattresses.


We bought our first sleep number 18 yrs


We bought our first sleep number 18 yrs. ago. When it was time for a new mattress, there was no doubt we would purchase a new sleep number bed.


Sleeping so soundly


Sleeping so soundly...best sleep ever....greatly needed rest


No more back and neck pain


No more back and neck pain. It’s a great investment and I highly recommend it.


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