This isn't the medium-firm mattress that I was hoping for, but it still is a decent mattress. I'd consider it firm with a slight (very slight) "give". The give isn't enough to drop it down anywhere into the medium range, but it's enough to provide decent support to back sleepers. I wouldn't recommend for side sleeper--unless that person is thin with narrow frame/shoulders and/or loves a firm mattress. Even heavier family members don't get much sink. Sometimes mattresses like this will bottom-out. This one is just firm. The sides do not have too much support so if you're a sleeper who prefers a big more sinking feeling you may find yourself sleeping on the edges. Just be careful that you don't roll onto the floor! We didn't notice any off-gassing (which is both good because it's ready-to-go but also bad because it's rather suspect given the materials). Overall, this is a gem of a mattress given the price if you're seeking a firm memory foam. I'd probably consider more for a guest room or child's room. I purchased it for a main bedroom mattress but it got moved to the spare room which we use when we just want to stretch out or take a quick nap. This mattress has more of a "sleep on top" rather than cradle/sink-in feel so it just depends on your preference. I haven't had it long enough to see if it gets much softer over time. A steal for the price. But still not right for my nightly comfort preference. (I wonder if quality control is an issue if people are actually getting/experiencing a softer sleeping experience). Overall, an okay mattress. Great for the price.

I purchased this mattress quickly online without spending much time reading its description. Just a lot of satisfied comments and an attractive price. If I had known it was a "bed in a box" I probably would have passed it over in favor of a traditional mattress. When it arrived, I was surprised and nearly returned it without opening the box, but after rereading a lot of happy online comments, I decided to give it a try. This is the most comfortable mattress I have ever owned and I look forward to many happy years with it.

I took a chance by reading all the great reviews. Well that chance was a gamble I lost. Where do I start. First I let it air out for 72 hrs 24 more hrs than recommended and it still never fully inflated. Second this mattress is totally uncomfortable. I’ve slept on cots while deployed that was more comfortable. This was $400 plus bucks down the drain that I couldn’t afford. You live and you learn.

I have purchased more than 7 boxed memory foam from Sam’s or Costco. This mattress was packaged beautifully, sprang up when opened and had far less of the chemical smell than previous mattresses. I gave it 24 hours to rise, but the morning after I slept on it I had new pain in my hips, knees, elbows and shoulders...I’m 5’5, 130 lbs and 40 years old. This type of pain was a first! I tried it again for 2 hours the next night and moved to the sofa. For whatever reason this particular members mark hotel collection mattress was too firm for me. In the store I sat on Serta’s bed in a box version and it was far softer but was unclear if that was its composition or if it had been broken in by other consumers. I purchased the members mark mattress because they produce great products and I wanted to give them a shot. Luckily I was able to track down my receipt from my previous mattress also purchased at Sam’s by Night Therapy and ordered it as a replacement. I purchased a mattress bag to protect the members mark mattress in the return process, but when I called to double check they were accepting return due to covid they told me Fed Ex would pick it up! The associate on the phone couldn’t have been more helpful immediately credited my card and arranged Fed Ex pick-up 2 days later. I had a terrific experience even though this bed didn’t work out for me!

The 12 inch twin mattress that I purchased at Sam's Clubis false advertisement the box said it was a 12 inch mattress and it is not it's 10 1/2 very disappointed. I am 65 and a widow. I cannot afford to hire someone and rent a truck to return it so I'm stuck with it. Mattresses in the spare room and I have one it says got it for 10 days and it's still not inches 10 1/2.

Have been hunting a mattress for years that would allow me to get a good nights sleep. So tired of waking up hurting and not rested. Have had trouble for years waking up because I just couldn’t rest. I don’t have that problem anymore. This is the absolute best mattress I’ve ever slept on.

Need help, FedEx did not deliver because they said it was damaged. Both FedEx AND Sams club have been INVESTIGATING for 3 weeks. Please can I have my 400 bucks back or another mattress! I need this for next weekend. It has been a month since they took my money.

I hesitated in buying a new mattress for several months. There are SO many options out there, all of them claiming to be the best. I spent lots of time researching prices and pros/cons for several brands. Friends of mine told me I would never get a decent mattress for under $1,000. Well, I am here to say they were wrong! I am so happy with my decision to go with this one. This is definitely the most comfortable mattress I have ever owned. When I first laid down on it, it seemed too soft, but that was because I didn’t give it the full 24 hours to fluff up. Now It’s firm, but not too firm. Soft, but not too soft. It’s just perfect for me with a history of back issues. I’ve been sleeping so well since I got it. Thanks for making an affordable option that is still so amazing! I would 10/10 recommend.

Mattress is made from cheap foam. Definitely not high density foam. Mattress sinks when laying on it and is not medium firm support- more like soft plush. Spend more money for a better quality mattress. Took this mattress back within 1 week of buying.

Bought this bed because of the mostly good reviews, but honestly none of them ever mentioned weight and how it felt for bigger people. Do NOT buy this bed if you’re overweight or on the bigger side. You’ll sink right into it. It’s not firm in the slightest for someone oversized, and you’ll have a hard time getting out of it. I started noticing it dent in the middle right away, which sucked for me cause I’m a stomach sleeper. Plan to return it as soon as I find a more suitable bed for myself.