I've been having hot flashes for 24 (yes, twenty-four, not a typo) years. The night after putting on these 100% cotton sheets was the first night I've slept without kicking all the covers off. Note: Sateen is too hot, and clings to your body. These sheets don't. I wish they came in more colors, but I'll still buy more. Because I slept like a human being for the first time in Forever.