Delivery from different locations took longer than initially projected. One box was overstuffed, as if it had been repackaged. After a few days they mattress was about 10.5 tall and 4 inches too wide at 42". They have been slept on 2 weeks and unpacked about a month. Still over 40" wide, making the 2 5-6 inches wider than a split king should be. Its risen a bot to almost 11", but still an inch short of 12" expected. It is plenty plush and not uncomfortable to sleep on but sheets and mattress pads were strained fitting over and likely why they measure narrower now. Not sure they'd stay compressed width wise with both off.

Better than expected. I did NOT like memory form mattress because I prefer firmer mattress with steadily support. I hate the endless sinking feeling that my husband's old memory form had as well as others I have tried. But this memory form mattress from Sam's does not give me that sinking, unstable, wobble feeling when in bed. I choose firm and to me it's medium. But good enough. I think firm is ideal for face-up sleepers but less ideal for side sleepers. The remaining question is how long can it stay in shape without becoming too soft or even collapsing.

I purchased 2 Twin XL 12" medium mattresses to use with a King platform bed. While the mattresses expanded quickly, had no smell, and a perfect medium feel (not too soft/not too firm), they are not anywhere close to a Twin XL dimensions (38" x 80"). Within 15 minutes of unboxing, they each expanded to nearly 42" wide. Height only got to about 11" as well. 84" wide will not work on a 76 1/2" wide bed. I ordered online so they will be picked up, but it was a complete pain to have to plastic them up again for pick up.

The bed came well packaged and very securely wrapped. As soon as I opened the packaging it completely sprung into shape with no issue. We're waiting a full 24 hours before laying on it. We ordered the medium and it's plenty soft and plush. I think it's perfect for my daughter but for me personally I would use the firm.

this mattress is terrible. only expands to 10 inches. when you sit or lay on it, it goes down to 2 inches. then when you want to return, they'll send a fedx truck to get it, but then , you are with out a bed. so to try and fix the problem, i brought a 4 inch pillow top. more money down the tube. in short, its junk

I have purchased 4 of these over the last 2- 3 years and will continue to purchase them. I had my doubts based on the price point, but I was pleasantly surprised. I originally bought them for me kids and they liked them. I recently purchased one for my guest room and have slept on it the last 2 nights. I realize that I need to replace my own mattress after only 4 years because I slept so well on this one!

I was in a financial and time crunch. I recently moved and had to purchase a matress quickly. Admittedly, I turned my nose up, assuming the store brand would not be comparable to the major matress brands. Bae-be was I wrong, wrong-wrong. This bed is firm like I like and applies the perfect amount of pressure to my lower back.

The reviews about it being too soft are correct. I have another memory foam mattress. Different brand. That is plush and isn’t nearly as soft as this medium. It feels like you went to sleep on an air mattress and woke up in the middle of the night and it was flat. This is excessive. I like plush. But this is next level. It almost has me wondering if they put the wrong one in the box

This mattress has a soft surface and is still supportive

This mattress is great. I get a wonderful night rest.