My sew in isn't very long (collar bone length). I put it in a little pony tail and put a scarf on my head. I woke up with my hair loose but I still had a scarf on my head... but but ends are a lil bit frizzy.
Wrap it! That's what I do. In the morning you unwrap and ready to go... fewer tangea and no need for flat ironing. ((Especially since I use the cheap BSS hair that starts looking a hot mess when u apply too much heat!!))