falling asleep randomly
narcolepsy (medical condition)
drowsiness (general state)
somnolence (medical term)
sleepiness (everyday)
cataplexy (sudden collapse)
narcolepsy
condition
narcoleptic syndrome (clinical) sleep disorder (general) hypersomnia (broader) idiopathic hypersomnia (related)
person
narcoleptic (affected person) hypersomniac (broader)
symptom
cataplexy (sudden collapse) sleep paralysis (episode) hypnagogic hallucination (episode) excessive daytime sleepiness (core) sleep attack (informal)
mild
drowsiness (mild) sleepiness (general) lethargy (vague)
informal
sleeping sickness (loose, misleading)
narcolepsy
narcoleptic (person) hypersomnia cataplexy sleep attack
sleepiness (excessive) drowsiness sleep paralysis hypnagogic hallucinations hypnopompic hallucinations automatic behavior nocturnal wakefulness fragmented sleep
sleep attack microsleep nap dozing off sudden collapse
orexin deficiency hypocretin REM intrusion genetic predisposition autoimmune (suspected)
polysomnography multiple sleep latency test MSLT sleep diary Epworth scale actigraphy
modafinil armodafinil sodium oxybate methylphenidate amphetamines antidepressants (cataplexy) pitolisant scheduled naps
sleep apnea insomnia idiopathic hypersomnia Kleine-Levin syndrome circadian rhythm disorder REM sleep behavior disorder
neurologist sleep specialist somnologist sleep clinic support group
daytime drowsiness sleep schedule stimulants caffeine driving risk falling asleep unrefreshing naps
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