sleepiness; drowsiness
Often personified as an irresistible urge to sleep, as in 睡魔に襲われる (attacked by sleepiness).
the sandman; Morpheus
Personification of sleep; used in literary or figurative contexts. Morpheus is the Greek god of dreams.
The sandman gently closed my eyelids.
During the afternoon meeting, I was overcome by sleepiness and yawned many times.