How to pick a winter heat up blanket but keep away the sweat? During winter, my male friend recurrently wakes up within the middle of...

During winter, my male friend recurrently wakes up within the middle of the night due to his sweat. His pillow defence and bedsheet would be all cold and raining. He is a hairy manly, but he likes to preserve himself warm at dark. Waking up at night have been affecting his work productive and his mood within general. I would approaching to help him out. He uses 100% polyester blanket and I have an idea that it is probably the main object. I would like to find out what sort of blanket I should get him so that it is breathable and will lend a hand him to keep heat up at night and comfortable in need sweating... Thank you for your input!
Answers:    I would try a cotton blanket.:)
look for a natural fiber blanket..it will wick the moisture away from the body.