This is a really good mattress if you're looking for one on the firm side, it is super comfortable, back & shoulder pain are almost gone after less than a week.

I have had this mattress just over a year. A couple months ago it started sink in the middle, causing you fall towards the middle of you sleep on one side. This makes it very difficult to sleep.

I bought this mattress 20 days ago and installed it 2 days ago. It is very comfortable but I have measured the height several times and it is only 10 1/2 inches thick instead of the advertised 12 inches. I am a retired Quality Manager.

We tried this mattress but had to return it after the second night. It was like sleeping on the floor. Sam's Club gave us no problems with the return.

I weigh about 450lbs. I usually wake up every 1 1/2-2 hours in my old mattress. Since day one I've slept through the night peacefully waking up only once a night.

I ordered this mattress because I needed it for surgery recovery. I never received it, Sams said I can't return it through them, it has to be with Serta even though Sams charged my account. Gave me phone number with no resolution.

The mattress is comfortable and does not have the chemical smell some alluded to. It is not a 12” mattress as advertised. I have had it for almost a week and it is 10.75 inches.

This mattress is wonderful, I'm able to sleep again, works well with my kids since they move a lot I'm stable to sleep well when they are in bed with me. Is comfy, cozy, stable. Love it!

Not as firm as I expected. We bought the exact same mattress model, in a queen size several years ago. The mattress we received recently is not as firm, we sink to the frame when we sit on the edge.

Very comfortable, does get hot/would recommend a serta cool mattress cover. Down side, mattress only expanded to 10” instead of 12” even after a wk & 1/2.