I got the King and it fit perfect. It heats up quickly and cools down within 30 minutes. Plus with water you don’t worry about radiation. It’s also very quiet. The motor is larger than expected.thought it would be

I simply don’t understand this mattress warmer. We have a king sized bed and this is only 39” long. So I decided it must go across the bed to just heat the mid-section of the bed… BUT the description says 1” thick and it is very thin and you can feel the plastic tubes!!! Those hurt to lay any amount of time on them. I called and said it didn’t fit our bed so they sent another one that is exactly the same.

It is a lot smaller than expected. It is not a full king size. It appears to be sized for a single person. Otherwise, it looks great and works great. It's a very neat product to have in the wintertime.

First, let me start by say that it definitely covers a king size mattress. And the pad itself is comfortable without being bulky. That being said it does not get very hot as a matter of fact it barely gets warm. And forget about instructions it doesnt come with any at least the one I received didnt. So, if you want just a mattress pad this item is fine. As a heating pad not so much.

I’m impressed on how well it works, downfall is you have cords going everywhere and you have to be careful because the tank leaks! Also the heated mattress pad I received was more like a twin size. Definitely didn’t fit on our King size mattress it was too small so we used it on the foot of the bed and it warms up nicely better than a regular heating pad, it keeps you warm it doesn’t burn! I just wished it had been a King size like it stated!