This is the best thing I've EVER done for my sleep and my back. Before it took me close to an hour to fall asleep. I use to be too warm and too uncomfortable and my poor back was screaming. Now I get into bed, kiss my wife goodnight and I'm out like a light. I get real sleep, I don't sweat all over the place and I wake up feeling rested and relaxed. Do yourself a favor and invest in this product. I'll give it 10 out of 5 stars.