Defective-as others have stated, it has a lump in the middle. Bought it for my guest room. Contacted Sam's through chat to find how to complete a return. They just said I needed to talk to the store. Store said I could put it back in the box (which is impossible) or wrap it in plastic. Then I get to stuff it into my car (which it won't fit in) and drive it back. I also don't live near Sam's so this whole thing is incredibly inconvenient. I tried to upload a picture, but this app only gives me an error message.

I bought the full size mattress on sale and it's already developed rises in the middle of the mattress, it's one inch wider than my bed frame and instead of the supposed 12 inches , mine only came up to 10 inches…in short a total piece of worthless crap!!!

Better than expected. I did NOT like memory form mattress because I prefer firmer mattress with steadily support. I hate the endless sinking feeling that my husband's old memory form had as well as others I have tried. But this memory form mattress from Sam's does not give me that sinking, unstable, wobble feeling when in bed. I choose firm and to me it's medium. But good enough. I think firm is ideal for face-up sleepers but less ideal for side sleepers. The remaining question is how long can it stay in shape without becoming too soft or even collapsing.

I have purchased 4 of these over the last 2- 3 years and will continue to purchase them. I had my doubts based on the price point, but I was pleasantly surprised. I originally bought them for me kids and they liked them. I recently purchased one for my guest room and have slept on it the last 2 nights. I realize that I need to replace my own mattress after only 4 years because I slept so well on this one!

Bought this mattress on 02/06/2023. It is now 3 years old and it is junk. A year ago it started to bunch up in places, and now sags with no support. From the sounds of others comments, no point in trying to get warranty service. Both my wife and I now have back problems.

Very happy with my purchase

Amazingly well constructed matress

Good mattress overall but too thick for a twin.

Super comfortable bed and easy to get, haul, and install!

This Members Mark mattress is great…like an expensive name brand