Your pillowcase might be doing more damage than you think. Cotton creates...

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

Your pillowcase might be doing more damage than you think. Cotton creates friction, leading to frizz and breakage overnight. Switching to silk is a simple fix, but simply popping your hair into a loose braid or bun before bed makes a massive difference