Go to the bathroom as normally as possible. After you flush, take off running to your room. Your parents might wake up but will just assume that you went back to bed. You can also just sneak back. This is harder than it sounds. The noises you make in the middle of the night can seem a lot louder than in the day. Before you go to bed, test to see where the creaks are on your floor (if you have any), a loud creak might just give you away so it helps to be prepared and know where the floor creaks.
