Waking up with knots? Cotton pillowcases create friction that leads to...

https://www.novabookmarks.win/waking-up-with-a-bird-s-nest-it-s-usually-down-to-friction-against-your

Waking up with knots? Cotton pillowcases create friction that leads to breakage. While silk helps, tying your hair in a loose, protective style is the easiest way to minimise damage. It’s a low-effort habit that makes morning styling so much smoother.