Member's Mark 12" Firm Memory foam mattress is exactly what I've been searching for in a mattress. It's consistently firm across the entire mattress and does not sag in the middle.

I bought this mattress but haven’t slept on it yet. It smells like glue or chemicals . I aired out the room , turned fan on, opened windows, put deodoranizer on plug and it still smells.

This mattress is so comfortable. Doesn’t take long to expand and no odor. I bought one for each of my children and quickly bought myself one as well. It’s like sleeping on a luxury hotel bed.

It is very comfortable. Didn't have a smell as some other reviews mentioned. We left it to "rise" for 48 hours. First night on it, I slept all through the night, which I haven't done in years. It's not too soft or too firm.

there is an obvious defect with this mattress, but Sam's will not pick-up or refund because I picked it up curbside. I have no way to return it without renting a truck. HORRIBLE - stay away (see pics)

My husband and I got this mattress for our son. He absolutely loves it. Money well spent. He's a bigger kiddo and the mattress seems to be holding up great. I wish I didn't spend $1,000 on the mattress I got and bought this one for me as well.

Excellent mattress so far, hopefully the foam will hold up. Extremely comfortable, supportive - you don’t sink in too much it feels like being on nice cooling fabric not a “foam pad” if that helps…

Great quality but this is not a medium firm mattress. Cannot sit on the edge of the bed without sliding onto the floor. Change the name to very soft and I will give it a higher rating.

The bed is OK for my almost 6 year old son. He is a slim kid, so for him it is fine. For an adult a medium feel, maybe not so much. Maybe a firm would have been better. For now the bed will do.

The mattress is comfortable and fits my needs in a spare bedroom. I have napped on it several times and have really found it worth the price. I am thinking about ordering a King size mattress for my masterbedroom.