There is no data about how common sleepwalking is. Estimates say that one to two percent of adults are sleepwalkers. Sleepwalking seems to be more common in children, between ten and thirty percent of children are affected; in most cases, they stop sleepwalking during puberty. Most cases of sleepwalking are temporary, they occur once, or only a few times. It looks like some sleepwalking may be inherited; very often, people who are sleepwalkers have other sleepwalkers in the family.