Waking up with frizzy hair is often just friction from cotton pillowcases....
https://technivorz.com/the-ultimate-overnight-routine-for-naturally-dry-curly-hair-wake-up-with-your-curls-intact/
Waking up with frizzy hair is often just friction from cotton pillowcases. Switching to silk helps prevent snagging and keeps hair hydrated overnight. For a simple morning win, try a loose protective style like a soft braid