bound insomnia. 
Amphetamines and related substances and other stimulants. Sleep disorders induced
by amphetamine and related substances and other stimulants are characterized by insomnia
during intoxication and excessi ve sleepiness during withdrawal. During acute intoxication,
stimulants reduce the total amount of sleep, incr ease sleep latency and sleep continuity distur-
bances, and decrease REM sleep. Slow-wave slee p tends to  be reduced. During withdrawal
from chronic stimulant use, there is both pr olonged nocturnal sleep duration and excessive
daytime sleepiness. Multiple sleep latency te sts may show increased daytime sleepiness dur-