idiopathic hypersomnia without long sleep time
Idiopathic hypersomnia without long sleep time is a sleep disorder characterized almost entirely by constant excessive daytime drowsiness lasting more than 3 months, with involuntary more or less restorative daytime naps. Night rest is of normal length or slightly prolonged but is less than 10 hours in duration, with often normal awakening.
MONDO:0018044
idiopathic hypersomnia
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