Crush not your curls! whether or not you’ve got natural curls, or you’ve done a wet set or curled your hair with a curling iron or hot rollers, smart sleep strategies will help you to maintain your curls overnight. Just going to bed with your hair down can leave you with mangled curls, while braids will straighten out your ringlets. Even worse, some nighttime styles — like rollers or pin curls — just plain hurt. Use this simple and sweet technique to keep both you and your curls fresh the next day.