Narcolepsy can disrupt sleep.
Humans may suffer from various sleep disorders , including dyssomnias , such as insomnia , hypersomnia , narcolepsy , and sleep apnea ; parasomnias , such as sleepwalking and REM behavior disorder ; bruxism ; and circadian rhythm sleep disorders .	REM	rapid eye movement sleep	insomnia	insomnia	hypersomnia	hypersomnia	narcolepsy	narcolepsy	sleep apnea	sleep apnea	sleepwalking	sleepwalking	REM behavior disorder	REM behavior disorder	bruxism	bruxism
