'Wakefulness' definitions:

Definition of 'wakefulness'

From: WordNet
noun
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"
noun
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" [syn: wakefulness, sleeplessness] [ant: drowsiness, sleepiness, somnolence]
noun
The process of paying close and continuous attention; "wakefulness, watchfulness, and bellicosity make a good hunter"; "vigilance is especially susceptible to fatigue" [syn: watchfulness, wakefulness, vigilance, alertness]

Definition of 'Wakefulness'

From: GCIDE
  • Wakeful \Wake"ful\, a. Not sleeping; indisposed to sleep; watchful; vigilant. [1913 Webster]
  • Dissembling sleep, but wakeful with the fright. --Dryden. [1913 Webster] -- {Wake"ful*ly}, adv. -- {Wake"ful*ness}, n. [1913 Webster]