Sleepwalking mostly happens in childhood, typically between the ages of 4 and 8. But adults can do it, too. Symptoms. When someone sleepwalks, they might quietly walk. Learn about sleepwalking (somnambulism) from the Cleveland Clinic, including the causes of sleepwalking, symptoms, treatment & more. Sleepwalking, or somnambulism, is a disorder belonging to the parasomnia family of sleeping problems. People with this disorder leave bed, without waking up, and walk. What are associated factors to consider?. William C. Shiel Jr., MD, FACP, FACR. Dr. Shiel received a Bachelor of Science degree with honors from the University of. Sleepwalking is a disorder that occurs when people walk or do other activity while they are still asleep. Learn about sleepwalking causes and symptoms and how to stop sleep walking. Sleepwalking is a type of sleep disorder that is affected by genetics, stress, fever. Sleepwalking, formally known as somnambulism, is a behavior disorder that originates during deep sleep and results in walking or performing other complex behaviors. Sleepwalking, also known as somnambulism or noctambulism, is a sleep disorder belonging to the parasomnia family. [2] Sleepwalkers arise from the slow wave sleep. Sleepwalking — Comprehensive overview covers causes, treatment and prevention of this usually harmless sleep disorder. Read about sleepwalking causes such as genetic, environmental, physiologic, factors, and associated medical conditions. Diagnosis and treatment information is also.