Rhythmic Movement Disorder

Rhythmic movement disorder is when someone moves their body in a repetitive way while they are sleeping or falling asleep. It's like dancing or bouncing, but done while you're lying down. This movement helps the person feel relaxed and fall asleep easier. Sometimes people will move their head back and forth, or roll their body from side to side. It's kind of like having a special sleeping dance that helps you get sleepy. Some people do it every night, and some people only do it sometimes. It's nothing to worry about, but if the movement is disturbing someone else's sleep, they might need to try sleeping in a different room.