A futon made of intricately intricate fiber material. Nowadays, even if it's cool when you go to bed at night, you often wake up feeling hot in the morning. It feels stuffy and unpleasant from night sweats. As summer approaches, the number of days when I wake up in the middle of the night because it's hard to sleep increases. The best way to deal with cold-feeling bedding is to use sheets that are cold to the touch...