We have a Tempurpedic mattress and find that it's just a little too hot. I find myself having to poke my legs out from under the covers most nights. I was looking for a way to cool the bed and I came across this mattress pad. It seemed like a good buy so I went for it. Big mistake!!! This mattress pad actually makes our bed WAY HOTTER! The first night we used it I woke up in the middle of the night DRENCHED in sweat! That had never happened to me before! We keep hoping it will work but I think we have to suck it up and accept that this was a complete waste of money. We have not found a solution yet to our warm mattress, but please don't waste your money on this product. Keep searching! Maybe try something from Bed Bath and Beyond. They have a pretty good return policy so I think I'm going there next. If the product doesn't work at least I will be able to return it...