After years behind the salon desk, I have seen the damage a cotton pillow...

https://tiny-wiki.win/index.php/How_to_Actually_Build_a_Bedtime_Hair_Care_Routine_(Without_Losing_Your_Mind)

After years behind the salon desk, I have seen the damage a cotton pillow causes. It is all about friction. That tossing and turning creates the frizz and tangles you battle every single morning. A simple nightly habit really does save your hair.