We found 4 definitions of sleep disorder from 4 different sources.
Noun |
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sleep disorder - a disturbance of the normal sleep pattern | ||
disorder, upset a disturbance of the peace or of public order | ||
hypersomnia an inability to stay awake | ||
insomnia an inability to sleep; chronic sleeplessness | ||
pavor nocturnus, sleep terror disorder a disorder of sleep characterized by a dream of terrifying dimensions far worse than a typical nightmare; they occur during NREM sleep |