Serta ThermaGel Memory Foam Mattress Topper, King, Blue

Ordered a mattress in a box and found it had good support, but FAR too firm so we ordered this topper. In so glad we did! It's like sleeping on a cloud! The best sleep I've had in a close to a decade!

EXACTLY what i wanted. My family bought me a similar Serta topper 5 yrs ago after a major surgery. My matress has seen better days. The first one was very comfortable and I was still using it but my large dog digs at the bed before laying down and did rip it. Honestly, the first one was a little too soft. I had a full open abdominal so those muscles were cut and I have bad joints , so sitting up can be tricky. I found you sink in and had to actually roll to get up. This Serta topper is much more comfortable & much easier to get up from because all though soft, it is firmer. It bounces right back after you get up. . It gives but doesn't make you sink. This helps sleeping when you have joint pain. I didnt feel as hot with it as much as the first either but could just be me. It came in a solid box ,( grandkids LOVE the box with the sheep and large flaps lol) compressed, well wrapped and in a duffle bag. It was fully expanded as soon as I opened it. I didnt notice any smells. This was the best sleep I've had in a long time and at this price I've considered buying an extra when it inevitably rips and wears down but I've read some reviews online that toppers didn't fully expanded after stored a long time. Ill just enjoy this till it dies and replace it then. It was very fast shipping also. I HIGHLY RECOMMEND THIS & WILL buy again!

King size was on sale. (Now I see out of stock) Initially very much compressed and cold since it is in the middle of Dec. It took a little time to unfold it (carefully so that it doesn't break), but then after unfolding, it expanded quite fast, so ok to the full shape in a few hours. This was a replacement of a name brand one, costing x3 more, but compared to that, 1. dense. by memory foam - yes, it feels like memory foam, unlike the other one that feels like just sponge. It slowly compressed where pressure is applied, then not much pressure once shaped by the body line. 2. feels cool. Yeah, the other one was like a regular sponge, so heat stays, but this one feels much cooler, though not like a refrigerator, but at the modest level. I wrapped it with a cooling mattress cover (which was on much sale too, search web!) and now I am very happy. I heard some got wrong size or even used one, but if you don't, you will love it!

The cooling part doesn't work. It is exactly 3 inches in thickness like it says. I slept wonderfully on this topper. You will literally feel the topper mold to you. After you let set out and thinken up it is pretty flat. Now I don't know if it's breathable or what ever definitely holds body heat. There is no weird smell.Downside trying to get out of bed I can't just roll over then set up.Down side it was the topper and bed in sheets. Thankfully I'm fine and I didn't have a extremely big matteress. King size actually fits normal size king beds doesn't lap over or fall short.Positive tho with in 30 minutes it was good was at proper height and I could put it on my bed.

I’ve had this on our guest bed for 2 years now and everyone who sleeps on it says it is the most comfy and best night sleep! So now a little over 2 years later I am buying another for my master bedroom! This one is still amazing as it was just slept on this past weekend in Jan 2026.