Tired of all the damage heat does to your hair ? Well follow along and learn how to get wavy hair without using any heat. Make sure hair is wet. Brush back into a really tight ponytail. Put multiple hair ties in your ponytail, so that your hair will stay straight. Make sure each hair tie is spaced about an inch apart, but make sure it stays super tight. Spritz your hair with hairspray. Sleep with this in overnight. If its too poofy, try doing pigtails instead. There you have it, a simple way to achieve wavy hair with no heat.