Waking up with a bird’s nest? It’s often the friction from cotton pillowcases...

https://www.stall-bookmarks.win/tired-of-morning-bedhead-your-cotton-pillowcase-might-be-the-cause-cotton

Waking up with a bird’s nest? It’s often the friction from cotton pillowcases causing that morning frizz. Switching to silk reduces drag, but the real difference is popping your hair into a loose silk scrunchie or a relaxed plait before bed