I love the color and texture of these sheets. I live in South Florida and I thought the long staple cotton would breathe well, but that is not the case. These are definitely not a "cooling" sheet, but I get that they are not marketed as such. The biggest problem I have is the size of the fitted sheet. I have a 15" King mattress with a lightweight mattress topper so these sheets, designed to fit a 16" deep mattress should fit very well. Nope. Not at all. The fitted sheet is so loose and oversized I have no doubt they would easily fit an 18" and possibly even a 21" deep mattress. I got a great deal on them, but i did request a return as I just don't see that i will use them.