Sleepwalking Sleepwalking is fairly common in children. Approximately 1 percent of preschoolers and 2 percent of school-age children walk in their sleep at least a few nights per week (National Sleep Foundation, 2004a). More generally, about 15 percent of all children have had at least one sleepwalking episode. Researchers used to believe that children outgrew their tendency to sleepwalk by late adolescence. However, sleepwalking in adulthood is much more common than once thought. It’s now known that about 4 percent of adults are sleepwalkers (Hughes, 2007).

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