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

https://www.4shared.com/office/pcYDzaBAjq/pdf-88397-12006.html

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.