Symptoms of irregular sleep/wake rhythm disorder include irregular periods of sleep and wakefulness which disrupt the normal daily sleep-wake cycle. It may be caused by brain dysfunction or not following a normal sleep schedule, ultimately leading to a pattern of insomnia and frequent daytime napping.
Review Date 4/20/2023
Updated by: Allen J. Blaivas, DO, Division of Pulmonary, Critical Care, and Sleep Medicine, VA New Jersey Health Care System, Clinical Assistant Professor, Rutgers New Jersey Medical School, East Orange, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.