I bought this for my spare bedroom but when I saw that it is wider and longer than the gel foam mattress I have on my own bed I swapped them. It quickly inflated to a full 12 inches and is so far very comfortable. I would say it is medium firm which I like. Will have to wait and see about it's longevity.

I have been sleeping on this mattress for about 2 weeks now, & it is so very comfortable. I notice from the covers in the morning that I do little tossing & turning anymore, as I did with my former mattress. Researched it with reviews & with the excellent rating given it by Consumer Report. Felt comfortable with making the $500 investment, & now with two weeks' sleeping on it, feel that I made a very wise choice for my replacement mattress. An adventure to watch it fill up quickly once the vacuum-sealed plastic is penetrated!

While this mattress is quite comfortable and I wake up without my legs hurting, it is very hot to sleep on. I've always been a person to get cold at night, but with this mattress I wake up in the night and have to turn on the fan. In favor of it I must say that my back and legs feel so much better during the day.

After seeing crazy prices on mattresses, we decided to try the foam one. so easy- picked up one from the store which fit in back of Honda CRV and had one delivered. Open up box, remove wrapper, and voila, your mattress expands and is ready for sleep. Very comfortable. Love it

No doubt it's a quality mattress at a good price. Problem is we didn't anticipate how awful the out-gassing would be! It gave my wife a severe headache for 24 hours. We moved the mattress into a laundry room to then outgas for another 5 days which gave me a slight headache every time I was in that room for more than a minute. IF you are chemically or EMF sensitive either don't buy a memory foam type mattress (of any brand) or make sure you have clean garage or other place that doesn't "share the air" and can leave it to outgas for a minimum of 2 weeks.

This is the second Serta SleeptoGo we've bought. It is a very comfortable mattress, easy to get into the house with the box with the handles and wheels. BUT, it is not a true 12 Inch thick mattress, which is a little dissapointing.It measures at 11 inches. Would be getting 5 stars if measurements were accurate. Also noticed the cover is a little slack at the bottom corners on this second one, my first one is not slack like that. That leads me to believe they may have actually shortchanged the entire mattress, while leaving the cover the same size. Manufacturer would save a lot of money on a few inches of foam x thousands of mattresses. Still, a good value for the money and comparable to the Casper, which is twice as much money.

We are used to the regular old school matress which we purchased in a firm traditional but after a few months we were back at square one. My husband was gerrinf back aches. Now with this one, hes getting good sleep. We did leave it out for 3 days so the mattress could rise. This matress is warm not hot like the traditional eurotop.

Best sleep I have had in years. Have had it a month. After a week it hurt my husband hip (he is a larger guy and prefers a soft bed) so we got a 3" cooling memory gel topper and its been great. You wont be sorry getting this. If it's a tad too firm just buy an egg crate topper or gel topper

We were skeptical of a memory foam mattress but after some research and reading other reviews decided to give one a try. It is a fantastic mattress and we are sleeping so much better with no hump in the middle which our previous mattress had from early on. Would highly recommend!

All the reviews were great. As I was looking for a firm mattress. One person said they took it back to Sam’s because it was like sleeping on a floor. That’s exactly what I needed to hear. Sam’s delivered it, it better then I thought it would be. If you like it firm buy it.