Brush hair thoroughly before bed
Apply a small amount of anti-frizz serum or lightweight leave-in conditioner
Wrap hair in a silk or satin scarf
Sleep on a silk or satin pillowcase
Use a loose low ponytail or loose braid
Avoid tight hair ties or clips
Keep hair completely dry before sleeping
Use a shower cap only if hair may get damp
Pin bangs or shorter sections flat if needed
Avoid sleeping with hair tucked under your body
In the morning, smooth hair with a brush or flat iron if necessary