They keep you cool! I got these on sale. They are very soft! My daughter had some other unicorn sheets on from another company, and she said she was too hot. I put these sheets on the next night, and she said she stayed cool with those sheets, and she was not hot. It’s the middle of a usual Midwest hot summer, with an average sleeping temperature of 76 F if you’re lucky! She slept much better with the new sheets on than she did with the previous ones from another company. It took longer for her to get to sleep on the bad sheets! I plan on purchasing these for my bed now!