Waking up with knotty, frizzy hair? Cotton causes friction that leads to...

https://theaustralianpost.com.au/protecting-hair-while-sleeping/

Waking up with knotty, frizzy hair? Cotton causes friction that leads to breakage. Swap to silk for a smoother sleep, and try a loose braid to prevent tangles overnight. It’s a simple habit that makes a real difference to your hair health.