Diseases

Idiopathic Hypersomnia

A sleep disorder of central nervous system origin characterized by prolonged nocturnal sleep and periods of daytime drowsiness. Affected individuals experience difficulty with awakening in the morning and may have associated sleep drunkenness, automatic behaviors, and memory disturbances. This condition differs from narcolepsy in that daytime sleep periods are longer, there is no association with CATAPLEXY, and the multiple sleep latency onset test does not record sleep-onset rapid eye movement sleep. (From Chokroverty, Sleep Disorders Medicine, 1994, pp319-20; Psychiatry Clin Neurosci 1998 Apr:52(2):125-129)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A sleep disorder of central nervous system origin characterized by prolonged nocturnal sleep and periods of daytime drowsiness. Affected individuals experience difficulty with awakening in the morning and may have associated sleep drunkenness, automatic behaviors, and memory disturbances. This condition differs from narcolepsy in that daytime sleep periods are longer, there is no association with CATAPLEXY, and the multiple sleep latency onset test does not record sleep-onset rapid eye movement sleep. (From Chokroverty, Sleep Disorders Medicine, 1994, pp319-20; Psychiatry Clin Neurosci 1998 Apr:52(2):125-129)

MeSH Record

Classification

Broader headings

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MeSH Record

Synonyms

19 entry terms
  • Hypersomnolence, CNS, Idiopathic
  • Hypersomnolence, Idiopathic
  • Idiopathic CNS Hypersomnolence
  • Idiopathic Central Nervous System Hypersomnolence
  • CNS Hypersomnolence, Idiopathic
  • CNS Hypersomnolences, Idiopathic
  • Hypersomnia, Idiopathic
  • Hypersomnias, Idiopathic
  • Hypersomnolence, Idiopathic CNS
  • Hypersomnolences, Idiopathic
  • Hypersomnolences, Idiopathic CNS
  • Idiopathic CNS Hypersomnolences
  • Idiopathic Hypersomnias
  • Idiopathic Hypersomnolence
  • Idiopathic Hypersomnolences
  • Sleep Inertia
  • Inertia, Sleep
  • Inertias, Sleep
  • Sleep Inertias

MeSH Record

Aspects Covered

35 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, classification, complications, congenital, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, surgery, therapy, urine, veterinary, virology.

MeSH Record

History Note

2020; was Hypersomnolence, Idiopathic 2000-2019

MeSH Record

Previous Indexing

  • Disorders of Excessive Somnolence (1975-1999)

MeSH Hierarchy

Tree Numbers

  1. C10w.886.425w.800.200w.400w
  2. F03w.870.400w.800.200w.400w

AMA Style

References

  1. National Library of Medicine. Idiopathic Hypersomnia. Medical Subject Headings (MeSH). 2026. Unique ID D020177. http://id.nlm.nih.gov/mesh/2026/D020177
  2. Idiopathic Hypersomnia. In: Wikipedia. https://en.wikipedia.org/wiki/Idiopathic_hypersomnia
  3. Idiopathic Hypersomnia. In: Wikidata. https://www.wikidata.org/wiki/Q2730080