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.

After getting an adjustable frame decided time to change mattress. Biggest problem was getting the old one off and ready for disposal and getting the plastic off the mattress was bit of challenge being careful not to cut the mattress. Once in place it began to hiss and start to expand quickly. Was surprised it only took a few hours to expand to 11 of its 12 inches! Very comfortable. Have seen reviews saying too soft but they must like sleeping on a rock as this is advertised as medium firm and would say that is right. So far so good and if run into problems in the future will come back to amend. So far very pleased.

When we were looking at the matress selection at Sam's we couldn't find Soft type mattresses in store that would work with adjustable bed frame. We ended up on going with this medium firm Members Mark Hotel series and it turned out to be exactly what we wanted being that it's in a box and you can't try it out in store it actually was softer then what we pictured and for a side sleeper you feel nestled into the matress rather than on top and using pillows to get support its so nice what a difference it makes to sleep better.

My husband and I have been using this mattress for the last 3 months. Compared to our old mattress, I love it! It’s great for relaxing and so nice to sit up and read/watch tv without getting uncomfortable. I do like sleeping on it, but I’d prefer it to be much more firmer. I was not sold on memory foam for this reason. My biggest complaint is that it says it has a cooling feature. We have a mattress cover on top, so not sure if that takes away from the coolness? My biggest issue is that we both wake up extremely hot. We like to sleep with the AC turned down, so if we forget to do that, we will wake up HOT and sweaty. Overall it’s a great mattress, but not sure if I’d purchase for myself again.

I have had this mattress for a week. I bought a queen size for a guest room. My guest only slept on it for three days and it is already showing signs of wear. The top is wrinkled and crumpled up. Also, it never fully decompressed. One end of the mattress is still "squished". The name states it is a "medium firm" but it is not. It is very soft and you sink into it when you lay, or sit on it. I previously bought a queen size Sealy mattress in a box from Sams and I have been very pleased with it. I have slept on it every night for about three years and I love it. I would have bought another one this time, but my local Sams club was out of them, so I bought this one instead. A lot of the reviews said it was just as good but it is not. I am sadly disappointed and will attempt to get my money back.

Purchased two queen mattress’s guest bedrooms. Everyone remarked how well they slept on them! Arrived pretty quickly after ordered. Arrived in a large but not too bulky box. The mattress expands after unboxing. Not two heavy but does take two to maneuver due to size.

We hated this ultra plus mattress. It's like molasses for the top 3 inches then hard as a brick underneath, which doesn't work for a side sleeper with hips. Returning this has been a NIGHTMARE, 3.5 weeks of Sam's telling me someone would contact me to pick it up. Finally I get a call from some company I've never heard of and I have to wait another week. They were supposed to pick it up but waited to contact me that day to ask for a picture of the mattress. They finally showed up in some random pickup the next day. It's been 2 days and I still haven't been credited for my return. I've been calling Sam's all day and they keep hanging up on me. I contacted the company that picked the mattress up and they say they emailed Sam's, but Sam's acts completely clueless. Now I'm still fighting to get my money back and I'm absolutely furious because Sam's had a junk removal company pick up the mattress. They'd rather send a brand new mattress to the landfill then let me donate it to charity. We are so done with Sam's, they suck.

I've slept on it for 2 nights and taken one epic nap on our new matresses, and i LOVE them! Our 12 year old Icomfort mattress had given up. We had decided to get 2 twin xl's in hopes of getting an adjustable base in the future and the 2 twin xl's were actually $50 cheaper than just buying a full king size. I can move these 2 all by myself where our old matress was so heavy it really needed 4 people to move if you were to follow OSHA saftey standards due to the weight ;) We got the medium, i let them "air up" for a little over 24 hours and they had no issues or a bad smell. I was a bit nervous when they were delivered because one looked like it was trying to air up in the box, so i was scared of it being mishappened or damaged from a cut through the box or something, but had no problems. Not to firm not to soft. Being 2 twin xl, there is very little if any movement transfer. King size bedding fits on the 2 mattresses perfectly and keeps them together better than i thought it would. Being 2 mattresses together, they are a smidgen wider than our current bed frame, so if you have a frame that the matress sit in that may be a issue if you go the 2 twin xl to make a king route. I paid $327 total after taxes for both and they arrived in 2 days! I bought from Sam's so if we didn't like them we could take them back to the store if there was a issue, as this was the first time buying a mattress that i didn't get to test out first and i was nervous, lol. I figure even if these break down after a few years, i would still be happy with my purchase because I've wasted more money on way less before. For the price, they are totally worth it and with the return policy, no reason to not try them out. We got the medium, which is fine for us, but if you like a firmer matress get the firm one. I'm ordering one for our 16 year old son, who has never had an opinion on bed comfort because he could sleep on the floor and find it comfortable. But he laid on it and said he wanted one too! The price is great! Trust me we went mattress shopping and i think we laid on every major brand mattress on the market these days and I'm telling you, there are way worse (name brand) matresses for quadruple the price out there

I was very disappointed. This bed was warm and worse way too soft. It was so soft the sheets were constantly popping off. After calling Members Mark and trying it for almost two months this bed had to go back to the store. Check out the new Casper line… Im MUCH happier.

**** Full size, Firm **** If you’re looking for a firm mattress, this is not the one to buy. The mattress I received could be considered "medium" at best, which was a major disappointment. Unfortunately, my frustration didn’t end there—it only increased when I tried to return the item. I contacted Sam’s Club to request a return. Given the mattress’s size and that it had expanded after unboxing, I asked them to arrange a pickup. They agreed and scheduled one with AIT delivery service. But after more than three weeks, I’m still waiting for them to confirm a pickup time. During this period, I’ve reached out to Sam’s Club four additional times. Each time, they claimed that AIT had tried to call me, but I hadn’t answered—which isn’t accurate. I made sure to answer every call, and there were no voicemails left, which would have been expected if I missed a call. Sam’s Club also assured me that AIT would contact me by both phone and email, but I haven’t received any emails (I checked my spam folder too). It feels like there is a complete lack of coordination between Sam’s Club and AIT. In my latest conversation with Sam’s Club, they promised AIT would contact me within seven days, but at this point, I don’t have much faith in their word. My takeaway from this experience: Avoid buying any freight item from Sam’s Club. I had a similar issue with a previous Sam’s Club delivery, where a “white glove” item was simply left at my front door. Although they gave me a 10% refund for the inconvenience, I ended up spending more just to bring it inside and set it up.