Waking up with knotty hair? It’s usually friction against your pillowcase....

https://www.protopage.com/caleb.thompson55#Bookmarks

Waking up with knotty hair? It’s usually friction against your pillowcase. Cotton can be rough, so switching to silk helps minimise breakage. Another simple habit is wearing a loose, low bun or braid to keep your hair smooth and protected while you sleep.