sleepiness

Urge to nap

Sleepiness is the state of wanting or needing sleep—the drowsy feeling that precedes falling asleep.

It may come from fatigue, boredom, or the body's natural rhythms: The sleepiness hit me around 3 p.m.

Sleepiness while driving or operating machinery is dangerous.

physical

fatigue

Weariness from prolonged exertion

heaviness · lethargy · sluggishness · lassitude · languor · torpor · enervation · flagging · drained · spent

drowsy

yawning

Opening mouth when tired

groggy · droopy · dozing · slumberous · somnolent · stupefied · foggy · dazed · drowsing · eyelids

restful

bedtime

Designated hour for retiring

napping · siesta · dozing · repose · lullaby · nighttime · cozy · snuggling · resting · catnap

inducing

soporific

Inducing drowsiness

tranquilizing · narcotic · melatonin · chamomile · warm milk · boring · monotonous · droning · soothing · white noise

Categories
Opposites
alertness level

sleepinesswakefulness

State of being conscious

alertness · awareness · vigilance · attentiveness · consciousness

energy level

sleepinessenergy

Power to do work

vigor · vitality · liveliness · vivacity · pep

Phrases
Family

sleep, asleep, sleepy, sleeping, slumber, slept, sleeper, sleepless, sleeplessness

Familiarity
Top 20,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G