No different from other bedding
I sleep very warm with a pillow top mattress and really wanted cooling sheets. These sheets were no different from my others. They recommend to not use fabric softener so when I washed them before using I didn't. They are quite rough. The light-weight cooling alternative down comforter is much heavier than my down and very warm as well. I was just as hot as with my other sheets despite paying quite a bit for these. There must be something else about them as my cat, who usually sleeps next to me, got on the bed, sniffed a bit and left. so that was sad that she noticed the difference.