Because we know that night sweats can cause you to get hot and sweaty hair, CoolRevolution has created a headband to help wick away all that unwanted moisture. Made of the same cooling rayon from bamboo fabric as our pajamas, the full-size headbands are six inches wide and the half-size headbands are 3 1/2 inches wide. They are made to move where ever you go, and they are made to help keep sweat from dripping down your head and neck.