This item was a major disappointment for me. While advertised as having a medium firmness, it was actually far beyond soft. So soft that that it began to cause joint pains in my knees and shoulders from sleeping in a curved (downward) position. That's how much give this has. Furthermore, nothing on earth could keep this thing from constantly sliding around on top of the underlying mattress. Every morning, it would be hanging of the bed by about a foot, and every morning I would have to correct it and re-do the fitted sheets. Overall, there is nothing positive I could say about this item.

Packaging was pretty terrible. The shipping box was half open and the items didn't even arrive in a serta box inside the shipping box. The topper wasn't even in a waterproof bag. Just exposed to the elements in a brown shipping box. Shipping complaints side, it is very comfortable. Now I just gotta find a fitted sheet to go over the mattress+ topper. Also: the plush cover in the box only goes on the topper. It does not go on the mattress and topper together. I figured that out after about an hour of struggling.

very comfortable

I purchased this King Serra mattress topper over a week ago. After the 1st topper never expanded to form, I returned to Sam’s Club. Thinking I happened to get a faulty product I exchanged for a another and tried again. Same Issue! Second topper never expands. They’re all bad! Don’t waste your time or money

I have bought a dozen toppers over the years with college kids moves etc. I saw this in club and thought Serta perfect. The worse ever. It doesn't even get close to the normal size. Large areas when it never expanded. Now I have to lug this back to store to return. This really is the worst product ever purchased. So disappointed.

For anyone having difficulty with the memory foam not expanding when you take it out of the box, I used a hair dryer on medium heat and just rubbed the memory foam on both sides until it slowly expanded. It took a little while but maybe 30 minutes later it was fully expanded and ready to be put in the cover!

This topper sounded so good and was so bad. It did nothing like it said it would. It was suppose to help with compression points. Not only did it not help but made it worse. It is hot and you can not hardly get in and out of the bed with it. It also hurt my neck. I bought a new pillow thinking that would help but it just made it worse. Plus trying to get it returned as been a nightmare. I am so disappointed in Sam's Customer Care.

GREAT value

Paid $149 at Sam's Club. I bought this a couple of months ago and it is extremely uncomfortable and it constantly slides off our bed no matter what we do. We end up having to pull it back onto bed few times a night. I have not slept well since I put it on our bed. We gave it time thinking it would relax or something but is worse over time not better. I don't know if Sam's club will allow me to return it, if not it will unfortunately be landfill!

Exceptional quality 4” Serta mattress topper! Comes with protective cushiony cover! Zipper glides on throughout the topper very quickly and easily! Had bought a Serta mattress without the topper and this is actually better than the other mattress I bought with a topper! Worth every penny!Thanks again Sams and Serta!