Stop waking up with morning frizz. Cotton causes friction that leads to...

https://post-wiki.win/index.php/Silk_Pillowcase_vs_Cotton_for_Hair:_What_Actually_Changes%3F

Stop waking up with morning frizz. Cotton causes friction that leads to breakage, whereas silk glides. If a new pillowcase isn't on the cards, try a loose plait or silk scrunchie instead. Protecting your hair is an easy habit that makes mornings a breeze!