I was nervous about purchasing a mattress online. But this mattress has been a great buy. I needed something that would reduce hip and lower back pain associated with side sleeping. After reading other reviews I decided to give it a try and am so glad I did!

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.

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.

When we set it up it felt like we were laying on something hard, so I unzipped the cover only to find that they had put the mattress in upside down, and we were laying on the coils. I hope that's not what they do for all mattresses. We flipped it over, and rezipped it, and initially it felt comfortable, but by 2nd & 3rd day my lower back was killing me. We will be returning this. I would not recommend to anyone that could suffer back pain.

Choosing a mattress is a lot of work. We first decided what type of mattress we wanted. We tried out several options at furniture stores and Mattress Firm and realized that we wanted a Medium-Firm Hybrid with cooling layers on top. This Member's Mark mattress was the most affordable mattress that I could find that matched all of our requirements and it is a bonus that it is 14 inches. We bought the medium and we absolutely love it. It may be very similar to the Nectar Hybrid 14 inch. Great job Sam's Club! We hope that more Member's Mark products that are good quality like this one are available in the future. Thank you!

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.

This is a great mattress if you are a side, or back sleeper. We went with the Medium and it is more on the firm side which is what we were hoping for. Other reviews seem to describe this so that is how we made our decision. This is very supportive and supportive right to the edge of the mattress. This does not seem to get that warm and we did end up putting a mattress topper on it since my wife like a softer top. It really did not change much in my opinion since they just squish down to the actual mattress. Yes I would recommend this. I am 59 and a hard worker with the normal aches and pains that come with hard working and I definitely get a good nights sleep.

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.

Wife and I bought the Medium version of this in store. This mattress feels like a plush and you sink in pretty deep while sitting. It is comfy while laying but a little to soft for us. We ended up ordering the Firm version online the next day. Will be returingin the Medium version once the other comes. Hopefully the Firm will serve us better.

1 year review of the medium mattress by a 230lb side sleeper: Month 1: Foam was is so thick, its cloud like. Felt more like a plush than a medium. Months 2-3: Perfect. Slept great. Months 4-5: Noticing the foam layers are beginning to lose their loft. Month 6: Foam is starting to bottom out, I began to feel the coil spring layer on my side. Months 8-9: Mattress foam was no longer providing any support. I felt as if i was sleeping on a firm coil spring bed. I began thinking I'm going to need a new mattress soon.. 12 months: Mattress has been replaced and now in the towns dump where it belongs. I had high hopes for this mattress but the long term just isn't there.