- wakefulness - a periodic state during which you are conscious and aware of the world
--1 is a kind of waking; physiological state, physiological condition
--1 has particulars: arousal; vigil- wakefulness, sleeplessness - a temporary state in which you are unable (or unwilling) to sleep
--2 is a kind of temporary state
Antonyms: sleepiness, drowsiness, somnolence
- wakefulness, sleeplessness - a temporary state in which you are unable (or unwilling) to sleep