I looked forward to trying this Beautyrest Smart Temp bedding set, containing a fitted sheet, flat sheet, and two pillowcases. The linens are made of a 55% cotton / 45% polyester blend with 1000 thread count. The linens are well sewn, with the fitted sheets having deep corner pockets, making it easy to pull around and tuck under mattress. The recommendation is to wash before use. I found that was necessary because they had a bad smell when I remove them from packaging. They laundered well. Since I experience hot flashes during the night, I was hoping that these would help with that, but that might have been too much of an expectation.  The material cools temps down by dissipating moisture (moisture wicking) and since the bed linens didn’t feel damp, it seems that’s an accurate claim.