It’s not great. Oddly, the topper DOES feel cool to the touch when you feel it with your hand. It’s a different story when you try to actually sleep on it. I was just as hot with this on my memory foam mattress as I was on the mattress by itself…which kind of means it doesn’t do its job. Very disappointed with this purchase. 

So far I’ve tried multiple toppers to combat the warmth of my memory foam mattress and none have helped. In the end, I took the drastic action of just buying another inner-spring mattress with pillow-top. I’m just not a memory foam person and I’m not convinced there’s really an adequate solution for people like me out there yet. Any foam seems to equal a miserably hot sleeping experience for all but the coldest of sleepers — regardless of how it’s marketed. Mis dos centavos.