For the women who need their bonnet on all night, the Afro Silk Bonnet is perfect for curly hair, natural hair, long hair, braids, weaves, rollers, hair clamps, and up-dos. Features a stretchy long band that can stay on over night, prevent hair from messy and well protect your hair. The Afro Silk Bonnet greatly reduces the friction of the hair, knotting, dryness and loss of hair. One size fits all. Will not bleed on the pillow. The diameter of this silk hair wrap is 12.6 inches.