although we have only had a few weeks, so far its great except that perimeter of top layer of foam needs some more firmness. When you try to sit on the bed you tend to slide off due to the large edge radius created, especially if your feet arent firmly planted on the floor. Other than that great sleeping.

I bought this mattress in 2011 for my guest room and all my guests raved about how well they slept. I finally bought a king size for my bed and have been sleeping like a baby ever since. O Yeah! I also purchased 2 more full size mattresses for my kids. In total I have purchased 4! I don't think you will ever get a bad review for these mattresses:-)!!!

We had to return this mattress, it was way TOO SOFT. Just sitting on the side of the mattress you sink almost to the bottom of it. NO support at all. After sleeping on the mattress for 2 months I was waking up with extreme pain in my back, hips, knees and ankles. I felt as if I was 30 yrs older than I am! My husband was having severe back pain also. We exchanged it out for a Serta Firm Mattress and after just one night the back, hip & ankle pains are gone! If soft is what you are looking for this is a great mattress. If you need any kind of support look elsewhere! Mattress was also EXTREMELY HEAVY. Very difficult to move. We didn't experience any problems with smells that other reviewers mentioned.

I am very happy with this purchase. Due to back injuries I haven't been able to sleep on my back in fifteen years but I wake up every morning on my back and can get out of bed much easier. Also the cool gel does keep me cooler! I have hot flashes that woke me up because the bed would get so hot but not anymore. I'm sure i am still having hot flashes but they don't wake me up anymore.

If you suffer from any type of spine disorder this mattress may not be for you. I have upper and lower back problems and while it felt good on the lower back, my neck gave me fits with this mattress. You truly have to like a soft mattress that sucks your body in to one place. I love the fact that Sam's will let you return a mattress with no hassle at all! I will continue to buy from them.

I bought this mattress based on the reviews for it on this site. I have to say my back is killing me. I am a heavy set guy and I like to sleep on my side, this mattress makes a large indentation around my midsection and I guess this is like sleeping on a hammock, in any case, I'm working to return, I have tried it for 3 months and I was trying to get my body to conform to the mattress, but I just can't take it anymore.

We started with our Night Therapy 13" MyGel Prestige King mattress Feb 2014. It is now November 2014 and we have returned it to Sam's. Thank goodness for Sam's excellent return policy!! I am 225 lbs and a back sleeper and she is 135 lbs and a side sleeper. The first 3 months of bed use was pleasant. But as time wore on, the indentions for both of us increased to the point we were encased in a hammock shape with a puffy ridge between us. Whether 135 lbs or 225 lbs, this mattress sags over time and stops supporting as it did in the first 90 days. That's what you need to be aware of. And that causes a total loss of the initial pleasant feelings about this mattress. Hope that helps.

I bought this because of severe backpain, I was hesitant to write a review until I was more certain. I did not sleep much on the 1st night because it was very different to what I was used to but since then I have slept better each night and my back pain has gotten better with each night. I am hopping that my back will be 100% within a couple months.

I'm 6' 320lbs with chronic back problems, including one surgery. This mattress has been great in reducing my back pain. I've had it for about a month now, and after two days of sleeping on it felt better than I have in years. My only complaint is how deep I sink into it. I'm pretty agile so it's not a problem at all, but for a large person with mobility issues it could definitely be a draw back. My wife is 100lbs and doesn't have any sink problems. For the price this mattress is excellent. I do have concerns about it's long term "bounce back" potential because of the sinking, but the comfort and price are worth it even if it only lasts a couple years.

The mattress is soft and comfortable, but is too soft for me. You sink into the mattress which makes it very confining to me. I'm 160 pounds. Not easy to roll from side to side. It made me feel like I was in a straight jacket. Not easy to sit up from lying position. To get out of bed, it was easier to roll to the side and get out. This mattress got a lot of good reviews but these reviewers must really like really soft mattresses. Not all foam mattresses are the same. I returned this one (major pain) and got a 12" thick Serta which is a lot firmer but still contours to your body just enough.