We bought two MM 14” medium-feel hybrid mattresses, and we could not be happier with our purchase. We sleep supported—without sinking in—and cool. And we rest for a minimum of 5-6 hours before awakening. Then it’s back to sleep. These are the best mattresses we have ever owned, and they are competing against high-end, ripoff-priced mattresses that we owned previously and that cost $6,000 and $7,500 (specialty brands from San Francisco). If you need a mattress, don’t delay. Members Mark will save the day.

If you buy the Ultra Plush, expect a SUPER SOFT mattress. In fact it is so soft, it feels like it is actually hurting rather than helping since there is virtually no support. We like a plush mattress but this is nuts. When you lie on it, and we are not big people, from the side you can only see 80% of us. Medium firm is probably the best. The other issue is sheets staying on. The cover is incredibly slick and the sheets slip off with ease. You will need a zip-on mattress cover that has some friction to keep the sheets from slipping off the corners. All it takes is getting in the bed and a corner will come off. We have the right sized, deep pocket sheets (from Sams). If your weight is in the 100 to 120 pound range, you may not sink like a rock. An average adult (I weigh 190), I am in a hole. This one is going to being returned.

Don't waste your time on this mattress. We had two more delivered after the first one was faulty, the first replacement mattress being both the wrong size and the wrong model. Turns out both the first and the third were faulty. Neither expanded to the full 14" height after more than a week of inflate time, both were 70" instead of 75". The return/replacement process is a nightmare. A private shipping company, which was terrible to deal with, was dispatched to our house to collect the mattress. The first replacement mattress was a California King instead of a twin. Unfortunately, we did not figure this out until it had expanded partially on my child's bed and partially on the floor. When I spoke with someone about the issue, I was told that my child could sleep on the california king on the floor while we awaited the pickup and replacement of the extremely too large mattress. It was a true delight to try and get a fully expanded california king out of the room, down the stairs, and outside for the aforementioned terrible shipping company to come and pick it up. While awaiting the pickup and shipment of the appropriate size model my child was completely blocked out of her room by the mattress and forced to sleep elsewhere. After the third and final mattress arrived we set it up and let it sit for longer than the 3 recommended days. It is still just 12" high and 70" long. It does not come anywhere near filling the cover and no sheets will ever fit it. It will be going back. Both of my adult children have had great success with other Sams mattress models, but do not get this one.

We purchased this mattress in Decembrr 1st, specifically because Sam’s Club stated it would arrive before we left for a month-long vacation. That turned out to be completely false. When we realized the delivery would be late, we attempted to stop it, but Sam’s Club’s customer service was an absolute nightmare—outsourced to a call center where communication was difficult, and in the end, they were completely useless. No surprise there—Sam’s Club’s delivery service is notoriously bad. Major Sizing & Build Quality Issues When we finally set up the mattress in January, we immediately noticed serious problems. It’s not even a true king size—it’s 3 inches too short and 1.5 inches too narrow. On top of that, the coil springs were sticking out on the ends and sides, making it uncomfortable and even painful to get in and out of bed. It feels like they forgot to add the edge band, making this mattress look and feel cheap and poorly constructed. False Advertising – NOT a Tempur-Pedic Alternative Sam’s Club advertises this mattress as comparable to the Tempur-Pedic Adapt Hybrid ($3,200 retail price)—but that’s completely misleading. My wife and I went to test the real Tempur-Pedic in-store, and there is absolutely no comparison. The Sam’s Club mattress lacks the comfort, support, and durability of a high-quality mattress. It’s just a cheap knockoff designed to trick buyers into thinking they’re getting a premium product. Deceptive Business Claims Even worse, Sam’s Club’s ad claims this company has been in business for 140 years—but in reality, they’ve only been making mattresses for a few years. This is just another marketing gimmick meant to mislead consumers. Final Verdict: A Complete Waste of Money This mattress is low-quality, falsely advertised, and sold at a price that tricks people into thinking it’s high-end. Between the delivery issues, false claims, and poor construction, this has been a frustrating experience from start to finish. If you’re considering buying this mattress from Sam’s Club—DON’T. Save yourself the hassle and look elsewhere.

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.

I was initially reluctant, but I am pleased with my recent purchase. I have had split king purple 4 mattresses for a while now, but I wanted to switch to a single king mattress. I'm a 180 pound male who likes a softer feel mattress, and the plush version suits me perfectly. It's has just the right amount of cushion to keep my shoulders from hurting for when I want to sleep on my side, and just the right amount of support for when I want to sleep on my back. I caught this with a $200 off sale, and I believe the quality for price is definitely worth it. I purchased a 4 Way Stretch Micro-Knit fitted sheet for this and it stretches, stays tight, and stays put. No cons so far.

I've had this mattress for about six months now, and I'm a larger heavier guy. Every night of sleep on this bed has been great, it's just the right firmness, doesn't get to hot or to cold. So far there's been no loss or difference in firmness/comfort. Completely silent, and doesn't transmit motion when getting in or out of the bed. No real complaints to it, just make sure you have help carrying and unpacking it, it is very heavy.

Purchased the "firm" version of this mattress a couple of weeks ago. Slept on it for 5 days now. Very comfortable, and the cooling top is great! "Firm" = support and a little give. Definitely not a hard mattress. No harsh smells were noticeable when the mattress was unwrapped. The box was a little beat up but the mattress was not affected. I would purchase again. Melissa H.

I researched for over a month before purchasing. BEST PURCHASE EVER! I was waking several times a night hurting in my hips and lower back on my Temperpedic mattress. From night one on this Members Mark hybrid, I did not wake up once hurting. I even slept an extra two hours! This purchase is well worth the money.

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.