Somnambulism, commonly known as sleepwalking, is a sleep disorder characterized by walking or performing other complex behaviors while in a state of sleep. It typically occurs during the slow-wave sleep phase, usually in the first third of the night. Individuals may appear awake but are not conscious of their actions and often have no memory of the event upon waking. The exact cause of somnambulism is not fully understood, but it can be triggered by factors such as stress, sleep deprivation, or certain medications. It is more common in children, with many outgrowing the condition, though it can persist into adulthood for some individuals.