I researched thoroughly before puchasing and chose this one on foam density and price. I already had a 2in memory foam topper that is now on top of this mattress. The only bad thing I have to say is that it is a little too big and since I have a platform bed, it is hard to tuck-in the sheets and blankets.

The twin size mattress arrived promptly in a large box. It is made in China. The shipment was lighter and the box considerably smaller than if the mattress had been an inner spring with steel coils and frame. The mattress was partially compressed in a tight roll in a sealed poly vacuum bag with much of the air removed from the foam. Then the roll was further packed in a sturdy cylindrical white plastic outer bag with a draw cord tie, before being slid into the box for shipment. Unpacking was the reverse, following the step-by-step picture instructions. As soon as the mattress was rolled out flat and the inner poly bag was opened, air began to rush in and fill the foam, expanding the mattress. I ordered the 8" thickness and the fully expanded mattress was almost 8 1/2" thick. This took about 48 hours, per the instructions. The result was a medium-to-firm mattress with the top layer of "memory" foam conforming to the body. After unpacking, there was an odor from the foam that I would describe as like latex-based paint. Although people vary in their reactions to odors, I would judge the odor to be rather mild, certainly not as intense as painting a bedroom with latex. Allowing the mattress to air for the prescribed 48-72 hours dissipated the odor to the point that I found it unnoticeable. One thing I didn't see in the description on the Sam's Club website (perhaps I missed it): The Night Therapy Memory Foam Mattress is not intended to be used with a foundation, such as a box spring. It is intended for a platform or bunk bed. I am using it on a captain's bunk with a continuous firm plywood surface, which works. Also, the mattress cannot be turned over with each sheet change to even out stress. The top is the top, the bottom is the bottom. The mattress can be rotated with each sheet change, head to foot. All in all, a nice quality-made foam mattress reasonably priced that gives a comfortable night's sleep. I would have given it 5 stars, but would like to see how it performs over time. So far only one night on the new mattress.

Not protected of stains although I put a mattress cover on top. Not practical for young kids.

You first read all the directions FIRST and then go back to beginning to put together -easy peasy!

we have bought 5 over the past few years and are verry happy with this matress

Comfortable and great price

Single adult sleeping on this mattress for over two years. Still sleeps good. Would purchase again.

bought this bed for my 6 ft 2 in son's visit; he says it's very comfortable and long enough for him .No odor and good packaging.

Absolutely LOVE this mattress! We purchased 2 full sized beds and loved it so much that we bought 2 more for our other kids! My husband and I plan to get one for ourselves when ours gives out!

The mattress seems very nice. It is very comfortable. As for durability, we will have to see. The only reason I didn't give it 5 stars is because I'm not the one sleeping on it, but my daughter says it's great.*