Wake up with less frizz by reducing night-time friction. Cotton can rough up...

https://www.social-bookmarkings.win/waking-up-with-knotty-hair-is-usually-down-to-friction-cotton-pillowcases-can

Wake up with less frizz by reducing night-time friction. Cotton can rough up your hair, so try switching to silk or tying your hair in a loose braid to protect those ends