Ever wake up looking like you’ve been dragged through a hedge? After nine years...

https://online-wiki.win/index.php/Why_Does_My_Hair_Get_So_Tangled_While_I_Sleep%3F_(And_How_to_Actually_Stop_It)

Ever wake up looking like you’ve been dragged through a hedge? After nine years in salons, I’ve learned that nightly friction is the secret cause of frizz and knots. A silk pillowcase is an easy, low-effort way to protect your hair while you sleep.