Sleepwalking is a sleep problem in which a person walks around while asleep. Usually, a person does not respond while sleepwalking and later does not remember his or her actions. Sleepwalking can be harmless, but some sleepwalkers may attempt dangerous activities. Causes may include stress, fatigue, alcohol consumption, fever, or many other factors. Follow the links below to find WebMD's comprehensive coverage about what causes sleepwalking, how to treat it, and much more.