Wake up with less frizz by swapping your cotton pillowcase for silk to minimise...

https://bizzmarkblog.com/do-i-need-silk-to-reduce-frizz-or-can-i-just-change-my-habits/

Wake up with less frizz by swapping your cotton pillowcase for silk to minimise friction while you sleep. If your hair is long, try a loose braid or bun