[1] : The Collaborative International Dictionary of English v.0.48

wakeful \wake"ful\, a.
   not sleeping; indisposed to sleep; watchful; vigilant.
   1913 webster

         dissembling sleep, but wakeful with the fright.
                                                  --dryden.
   1913 webster -- wake"fully, adv. -- wake"fulness, n.
   1913 webster
see also:
wake"fully wake"fulness 

[2] : WordNet (r) 2.0

wakefulness
     n 1: a periodic state during which you are conscious and aware of
          the world
     2: a temporary state in which you are unable or unwilling to
        sleep syn: sleeplessness ant: sleepiness
see also:
sleeplessness sleepiness 

Wakefulness >> W Words
Wakefulness, definition of term: Wakefulness
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