Not a good mattress felt great for about a month. I should've had red flags when the mattress arrived too short from my other twin xl and more narrow. Seems like this one was definitely defective maybe? Not wanting to keep it either because my deep sheets don't work on it as well!

Like other people reviewed, this mattress arrived with a defects. On one side it was 4 inches short, on the other side it was 2 inches short. The foam was also misaligned to the base so the coils stuck out 2 inches on one end and the foam stuck out 2 inches on the other end. The cover also fits loose and theres no foam protecting the bottom coils so they pushed through my bed slats. Sam's Club was great about taking care of the problem. They offered a return or replacement. I opted for a return and purchased another mattress. Sam's Club sent out somebody to pick it up for disposal. Some people had good experiences but I'd recommend going with something else.

The mattress is great. More of a medium firm, but plenty of give and bounce being a hybrid with foam vs latex. Will update if after a few weeks there are any issues. Ships from the same factory as nectar and the other popular hybrid mattresses. FedEx has yet to deliver a single Sam's club order by the original estimated date. Ever. I would like an option to choose a different shipper.

Highly recommend for anyone who has never bought a new mattress and is on a budget. We did not want to spend over $1000. I did some research and tried a mattress that we did not see or lay on in person. The reviews did not lie. It is so comfortable. Definitely feels like the higher end hotel beds we have slept on. It arrives in a box. We took it out of the box and placed it on the bed before unwrapping the package. Let it sit for a good 6-8 hours then we slept on it that night. It is a good firmness. Not too hard and not smushy. It is great. My husband overslept after the second night and said it was my fault for buying such a comfortable mattress. I'll take that as a good thing.

This is my initial reaction; we chose the Queen Firm - I was worried about the firmness (specifically that the mattress would be way too soft). The rating scale of 1-10 seemed subjective (Medium was 5-6 & Firm was 7-8). Our old traditional mattress was called ‘Firm’ by Sealy and it felt like lying on a brick while sleeping even though there was a cushioned feel if you pushed down while standing next to the bed. My wife and I are in our 60’s and have developed shoulder pain recently from sleeping on that mattress. The Members Mark Hybrid ’Firm’ is perfect … stable but like a pillow-top topper that gives for comfort and support but gently firm below. In the box it was very heavy but unboxing was easy. The air rushed in quickly when vacuum seal was opened and it came into shape quick. Two of the corners aren’t perfect but it’s not a glaring defect - just a small folded and puckered spot. It’s going to be covered by sheets and blankets so it is a big non-issue. The cooling top is nice. I reasoned that we’ll spend 30% of our lives on this mattress so it will be worth the investment to be comfortable. If our sleep experience isn’t good then I’ll update my review but so far - I think this mattress and firmness choice will turn out to be perfect.

Ordered the medium Cal King mattress. Seemed like a very comfortable and solid mattress. Inflated very quickly. I like a firmer mattress and this one was just a little soft for me but a good compromise with my wife who likes a softer mattress. However, noticed almost immediately though that the bed was short. A Cal King is supposed to be 84 inches long. This one was about 80 1/2 inches long. Literally the size of a regular king and was way short for the bed frame. I let it sit for almost a week, never got longer. Not sure if it was a defect or that's just the size they made it. Returned.

Ordered the "medium" version first. We are going to return it and exchange for the plush. My wife is a side sleeper, and I am a back sleeper. So, we're trying to find the "middle ground" where we're both comfortable. I will update this review (or post a second review) once we get the Plush version in. That said, the bed is comfortable and seems to be well made. We've been on it about a month now, and while we do like it, the medium is just too firm. We're 5'7"/5'10", and ~130-170 lbs. Hoping the Plush version is softer. That said, I called Sam's club service number. They are having someone come pick up the mattress. This is great customer service. In the meantime, I have ordered the plush. I'm hoping for the best, but also I am purchasing confidently because of the great customer service I just received.

Where do I even begin with the Member's Mark Hotel Premier 14" Hybrid Mattress? Let me start by saying the word "Premier" is doing some very heavy lifting in that product name — unlike the mattress itself, which can't even support a small child without swallowing them whole like some kind of foam-padded Venus flytrap. I've slept on air mattresses at 2 a.m. after Thanksgiving dinner that offered more structural integrity than this thing. Calling it a "hybrid" is generous — it's a hybrid of disappointment and regret. Fourteen inches of mattress and somehow every single one of them is useless. My kid sits on it and practically disappears into the abyss like it's a memory foam black hole. The only thing this mattress is firm enough to support is my growing resentment toward Sam's Club. Speaking of which — let's talk about that famous "Satisfaction Guarantee." You know, the one proudly plastered across their website and membership materials? Turns out it comes with a silent asterisk that reads: unless it's this mattress, in which case, good luck and may God have mercy on your spine. I tried to return it and was met with more resistance than the mattress has ever provided my back. Apparently "100% Satisfaction Guarantee" is more of a vibe than an actual policy. So here I am, stuck with a $400 slab of lies, sleeping like I'm suspended over a pit of marshmallows, wondering what I did to deserve this. If you're looking for a mattress that functions as a mattress, keep scrolling. If you're looking for an oversized, overpriced dog bed that will also teach you a valuable lesson about reading the fine print — this is your guy. Would not recommend to my worst enemy. Would recommend to my neighbor who keeps parking in my spot.

Not as firm as I was expecting. I ordered the firm but the mattress is more like a medium firmness.

It said is medium but is really sof