This is awesome! Just like sleeping in a cloud. Our sleep number bed is wonderful but it just needed a little something extra. This is definitely the answer!

We bought at the spur of the moment to sleep on in the back of our SUV one night, and now it's on our bed. It makes fancy hotels less exciting now, as we haven't slept on any bed since that is as comfortable as ours at home!

Very comfortable. Just the right amount of soft yet not too soft. I love the top being fiberfill, this also makes a difference because you are not directly laying on the memory foam.

I bought this top for the Tempur-Pedic mattress which costed $5500, was absolutely a disaster on my back, couldn’t sleep at all! This Serta 4” top is a game changer! My back doesn’t hurt anymore!

When we first receives our topper, we put the foam into the cover and zipped it up and the zipper pull came right off the end. It had not been sewn at the end. I contacted Serta and they immediately sent out a new cover. Great customer service.

I have only slept on this one night and know I can't keep it. 1) The foam itself is only at best 3 inches thick (on a 4" marketed topper - do better, Serta!) 2) It retains body heat and can make sleeping temperature extremely hot (unless that's what you want) 3) Mine also had that yellow chemical stripe on it - it's not urine as others have stated, I think it's from chemicals/being stored in non-temp controlled warehouses

Got the first to augment a shallow bunk mattress on our new RV and man what a difference it made. I'm 6'2" and 225 lbs and even in a 6' bunk space I sleep like a baby on this thing. I tend to sleep hot, but the top inch of pillow top breaths enough to make it relatively temp neutral. Not quite to the point of my Purple mattress at home, but it is still comfy all the way around. This purchase is actually a second one to put on another sleeping spot on the RV as well. Have even thrown down on the floor for sleep overs and kids sleep decently on it as well.

This is very comfortable. Not too firm, not too soft. It made my 20 year old mattress feel new again. However, this topper is made in 2 parts. There's a 3 inch foam piece and a 1 inch piece in a cover that you zip over the foam piece. Unfortunately, the topper slides around on the mattress when the cover is on (despite little plastic dots that I assume are supposed to grip), so I had to unzip it and just set the 1 inch piece with cover on top of the foam piece. The foam piece does not slide around on the mattress, but the loose cover with all the fabric bunches up in places. But that's better than having the entire topper slide several inches off the side of the mattress every night. Overall, I'm very happy with this topper. Very comfy. My back doesn't hurt anymore and neither do my hips, so all is good.

I'm working a job site a few states away from my home and am bringing a blow up mattress with me for ease of moving and ability to move without a truck. This topper has made that blow up mattress very comfortable and closer to what a real mattress feels like versus something that is hard and cold.

Do not buy...toxic smell, awful to lay on, even after a month. The smell was all over me, my blankets, clothes, even folded clothes that were in my room. This product should be illegal to sell, it is titanic waste of money. Serta should be investigated, and so should Sams for carrying it. I’d give it -5 stars if I could. Worst product ever. Like laying on a toxic landfill. It’s like a cancer mattress. Awful.