We spend hours on our hair, only to ruin it while we sleep. Cotton creates...

https://www.female.com.au/why-more-australian-women-are-rethinking-their-night-time-hair-care-routine.htm

We spend hours on our hair, only to ruin it while we sleep. Cotton creates friction, leading to morning frizz and tangles. Using a silk pillowcase lets hair glide, protecting your ends. It is a simple habit that saves you from a morning blowout.