Most people talk about the comfort and the cooling aspect of the sheets. I want to comment on their durability. They wash wonderfully, don't become misshapen. The elastic on the fitted sheet is thick and awesome and easy to get over those corners of the mattress. The sheets slide on the bed almost on their own . They wash and dry well. I have been using them for months and they are not showing any sign of wear. I will never go back to plain old sheets again!