Wondering if you have a sleep disorder? Take this assessment to learn more. Reviewed 4/9/2024 Sources Eunice Kennedy Shriver National Institute of Child Health and Human Development. "What Are Some Myths About Sleep?" https://www.nichd.nih.gov/health/topics/sleep/conditioninfo/sleep-myths. Sleep Foundation. "Does Daytime Tiredness Mean You Need More Sleep?" https://www.sleepfoundation.org/how-sleep-works/does-daytime-tiredness-mean-you-need-more-sleep. Sleep Foundation. "How Much Sleep Do You Need?" https://www.sleepfoundation.org/how-sleep-works/how-much-sleep-do-we-really-need. Related stories