This mattress killed my back. Was way too soft (I ordered the medium) and had to return before having it a week. The online return process has been a nightmare! It took 3 weeks for someone to pick it up and they said it will be another 2 weeks before I may possibly see my refund. I will never buy another large item online from Sam's Club again.

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.

I got this to replace a mattress that cost about 3x this price of this one. I was leery to order something I hadn't laid on but read that Sam's has an awesome return policy, so it felt low risk. It arrived within a couple days. I was nervous that a mattress with springs would be rolled up in a box. However, once I cut the plastic off, the mattress decompressed and seemed full height within minutes. I did smell a slight chemical off gassing the first night, but not after that. I am really pleasantly surprised with this mattress... compared to my expensive one, which was also a hybrid, it is just as comfortable, has the perfect amount of give with the memory foam, but the support of the spring base. I got the medium. I have been sleeping great. I am a side and back sleeper. It has not seemed to sleep hot at all... if anything, it feels a little cooler. I would say the sides are maybe not as reinforced as my $$ mattress, but that's not a big deal to me, as I don't sit on the side of my bed for anything. I am waking up with ZERO back and hip pain, which is why I replaced my mattress to begin with. I was having SI join pain, tightness all down my legs and even in my obliques (I am a fit 45 year old female, 5'3" 120 lbs). I was beginning to think it was just some aging aches and pains, but am just so relieved to have zero pain now!

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.

complete waste of money. save yourself the hassel and just spend more and get a nice mattress.

We were skeptical but so far we have been impressed with the mattress.

Purchased the medium and it is as to be expected for a bed in a box. However, the mattress is 6" smaller than a standard King sized mattress. Therefore, it does not fit correctly on the bed frame. Which is highly disappointing since the closest place to return is 100 mile drive.

Purchased the KS Firm and couldnt be happier. It molds perfectly to your body and offers excellent support. Cooling layer is really effective. I was worried about the memory foam being too hot for me but I really didnt need to worry at all. I will certainly be buying these for my other beds.

I would not recommend this mattress. It was shipped in oblong box torn and tossed. No label of top or bottom of mattress all wrapped in an abundance of thick tight plastic. Very heavy oblong cardboard box and rolled so much it was giving away and becoming rounded. Very difficult for 3 people to pick up and move. FEDX had difficulty also. The mattress has NO springs in the side edges of the mattress where you would sit on the side of the bed. If it does you cannot feel them and they do not support you. There are coils and springs in bottom of mattress where your footboard is at. These coils and springs are lumpy bowed out and hard bowed buldged on the side of the cloth of mattress. The mattress itself took much work to get it open out and placed on the bed. It smells like high amount of paint or chemicals has been poured into the room where it on the bed at. This is day 2 and the smell with a fan on and the windows open is overwhelming and cannot be good for you at all. This mattress soft touch and the material top covers are beautiful. The material and the quality of this mattress is wasted money. I would never recommend it to anyone. The struggle of it all and the quality that you paid for is NOT worth it. I am very disappointed and referred others to be members of Sams. This mattress is not Sams Members quality at all. To send back or take back this mattress is out of the question. I would have to buy box and No Way you can roll this mattress back up. Get 3 or more men to get it out of my home and then carry in what a trailer back to the store or Van. Very disappointed to say the least. Home smell is not worth your time for this mattress either. I will never buy another rolled up mattress in a box.