wakefulness

noun

1. The state of being wakeful.

2. A periodic state during which you are conscious and aware of the world

   “consciousness during wakefulness in a sane person is pretty well ordered and familiar”

3. A temporary state in which you are unable (or unwilling) to sleep

   “accept your wakefulness and sleep in its own contrary way is more likely to come”

   Similar: sleeplessness

4. The process of paying close and continuous attention

   “wakefulness, watchfulness, and bellicosity make a good hunter”

   “vigilance is especially susceptible to fatigue”

   Similar: watchfulness, vigilance, alertness