I'm going to be the downer reviewer here. For starters, these couldn't possibly be 1000 thread count sheets. My 600 thread count sheets are thicker than these. I can see the 'Cool' print on my mattress through these sheets. As well, the description says it will cover a 15" mattress, mine is 12" thick, and these sheets barely cover it. Unfortunately, I had already washed them per instructions and can't return them.