Definitions for "drowsiness"
Drowsy - quiet wakefulness occurring prior to sleep onset.
A state of quiet wakefulness that typically oc- curs prior to sleep onset. If the eyes are closed, diffuse and slowed alpha activity usually is present which then gives way to early features of stage 1 sleep.
Drowsiness, Drowsy is a state of impaired awareness associated with a desire or inclination to sleep. Also called hypnesthesia.
Keywords:  sleepiness
sleepiness
State of being drowsy.