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hypersomnia

DEFINITIONS OF: hypersomnia

1

n an inability to stay awake

Antonyms:
insomnia
an inability to sleep; chronic sleeplessness
Types:
catalepsy
a trancelike state with loss of voluntary motion and failure to react to stimuli
narcolepsy
a sleep disorder characterized by sudden and uncontrollable episodes of deep sleep
Type of:
sleep disorder
a disturbance of the normal sleep pattern
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