Super comfortable, but it was so hot that I had to take it off my mattress halfway through the night. I laid awake for like 3 hours trying to find a way to not be burning up. I know memory foam retains heat but I thought the gel aspect was supposed to combat that - it definitely did not. I'm going to be returning this. It's too bad because it definitely was super comfortable otherwise. So if you're a cold sleeper this would be great for you.