Sömnstörning knuten till centrala nervsystemet och kännetecknad av lång nattsömn och perioder av dagtrötthet. De drabbade upplever svårigheter att vakna på morgonen, sömndruckenhet, omedvetet beteende och minnesrubbningar. Till skillnad från narkolepsi präglas tillståndet av längre sömnperioder dagtid, det finns ingen koppling till kataplexi, och sömntest registrerar inte insomnings-REM.
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)
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Hypersomnia, Idiopathic — Hypersomnias, Idiopathic — Idiopathic Hypersomnias — Idiopathic Central Nervous System Hypersomnolence — Idiopathic CNS Hypersomnolence — CNS Hypersomnolence, Idiopathic — CNS Hypersomnolences, Idiopathic — Hypersomnolence, Idiopathic CNS — Hypersomnolences, Idiopathic CNS — Idiopathic CNS Hypersomnolences — Hypersomnolence, Idiopathic — Hypersomnolences, Idiopathic — Idiopathic Hypersomnolence — Idiopathic Hypersomnolences — Hypersomnolence, CNS, Idiopathic