central disorders of hypersomnolence (CDH)« Back to Glossary IndexThe central disorders of hypersomnolence (CDH), as defined by the ICSD-3, include narcolepsy type 1, narcolepsy type 2, idiopathic hypersomnia, and Kleine-Levin syndrome. They also include insufficient sleep syndrome and hypersomnia caused by a medical condition, medication or substance, or psychiatric condition.Related Articles: In Case You Missed It! – September 2022In Case You Missed It! – October 2021Diagnosing Hypersomnias Differently—A European ProposalIn Case You Missed It! – September 2021In Case You Missed It! – August 2021Saving Money on Prescription MedicationsIn Case You Missed It! – November 2020In Case You Missed It! – October 2020Do I Have IH or NT2?VIRTUAL: HF's The Research Continues2018 ConferenceAnesthesia, Hospitalization and Emergency Planning for People Who Have HypersomniasClassification of HypersomniasTreatment for Idiopathic Hypersomnia & NarcolepsyIn Case You Missed It! – July 2019Glossary: International Classification of Sleep DisordersArticle Summary: Khan Z, Trotti LM. “Central Disorders of Hypersomnolence: Focus on the Narcolepsies and Idiopathic Hypersomnia.”Ask the Doctor: Narcolepsy vs Idiopathic HypersomniaAsk the DoctorWhat’s New in the Diagnosis and Treatment of Hypersomnia in 2016?