This is the best memory foam mattress cover, I like it so much I have purchased three of them. Two for my camper, a queen for my bed and a twin for the jackknife couch bed. I have a king in our guest room in our home. They're like sleeping on a cloud. The cover zips around the foam easily.

It is as advertised and it puffs up to the full 4" as advertised and does come with a zippered cover which is nice, but it does move on the bed somewhat because it's a mattress cover, not a mattress pad. It is fairly easy to adjust, just pull it back where you want it every few days. It is comfortable and you sink into it as it cradles your body. As others stated in their reviews is that it does smell at first, but the smell does dissipate. If you can leave it uncovered for a few days before use, it will help with the smell greatly. I didn't have that option, so I just unzipped it most of the way the first couple of days and it helped a lot.

I purchased the King size for my bed and it has completely transformed my mattress. I feel like I am sleeping on a cloud! I can't wait to get into bed and don't want to get out of it in the morning. I have recommended this to everyone. The best purchase I have made at Sam's Club!

The topper is very comfortable in terms of softness and it does seem to eliminate some of the pressure on body. One thing pointed out in the box is that it stays in place. That is totally untrue. I wake up every day with the topper hanging over the side and bottom of the bed. I am a person that pretty much sleep in one spot for most of the night or until I start feeling pressure in one spot or another.

This mattress topper is amazing. It has 2 parts a 4 inch memory foam and then a pillow topper cover to go over the foam. This is my second one to purchase for my second daughter to take to college. They say it makes those awful dorm beds better than our nice mattresses at home!

I purchased this mattress topper for my parents and they love it. My Mom has back problems due to a car accident and she hasn't had any major pain since she's been sleeping on the topper. If you're considering this mattress topper, you should definitely give it a try!

Not long after I bought this I started waking up after a few hours of sleep and I thought it was me not sleeping well. It is hot when the temps rise in the spring and the foam is freezing in the fall and winter. This was advertised as cooling topper but I wake up hot just like I did last night and I've only had 4 hours as I sit here to make this review. Find something else, this might work for some people but I would purchase a different brand

We have purchased this exact same topper 3 times. First 2 were awesome. This last one was hard as a rock. It also had yellowed sections, which indicates old foam. Thankfully Sam’s let us return it. I think we were sent a really old one. Not Sam’s fault. This was on Serta.

King size.. I opened this about 12 hours ago. It was smashed so flat in the box it has only expanded in less than 1/3 of the topper. The other areas are hard and completely smashed. I have bought whole mattresses that were in a box and never had an issue. This will be returned for sure, it was packed so tight it has ruined the foam.

I didn't realize that this topper would completely conform to my body and envelop me. It way too cushy. I bought it to go on top of my firm mattress. Once you lay down on it trying to change positions or get out of bed is challenging. You sink to the bottom and fight to get out of bed.