Wake up with less frizz by minimising night-time friction. Rough cotton...

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

Wake up with less frizz by minimising night-time friction. Rough cotton pillowcases can snag hair, so silk is a kinder alternative. If you aren't ready to swap your bedding, try a loose, high bun with a soft scrunchie to protect your ends while you sleep