Wake up with frizz? It’s usually friction from your cotton pillowcase....

https://wiki-triod.win/index.php/How_to_Protect_Hair_Extensions_Overnight_Without_Tangling:_A_Pro_Guide

Wake up with frizz? It’s usually friction from your cotton pillowcase. Switching to silk helps, but an easier habit is a loose braid secured with a soft scrunchie. These simple steps minimise breakage and keep your hair smooth overnight