Frizz often comes from friction against cotton pillowcases. Silk allows hair to...

https://www.bookmark-zulu.win/wake-up-with-less-frizz-by-rethinking-your-sleep-routine-cotton-causes

Frizz often comes from friction against cotton pillowcases. Silk allows hair to glide, minimising damage. If you’re not swapping bedding, a loose braid or silk scrunchie keeps hair safe while you sleep. It’s an effective way to look after your ends.