Sleeping on cotton creates friction, which often leads to unwanted breakage. A...
https://station-wiki.win/index.php/Silk_Pillowcase_vs._Satin_Pillowcase_for_Frizz:_Is_There_Actually_a_Difference%3F
Sleeping on cotton creates friction, which often leads to unwanted breakage. A silk pillowcase is a simple fix, but if you aren’t keen on the upgrade, try popping your hair into a loose plait before bed