Search Result for "sleeplessness": 
Wordnet 3.0

NOUN (1)

1. a temporary state in which you are unable (or unwilling) to sleep;
- Example: "accept your wakefulness and sleep in its own contrary way is more likely to come"
[syn: wakefulness, sleeplessness]



The Collaborative International Dictionary of English v.0.48:

Sleepless \Sleep"less\, a.
   1. Having no sleep; wakeful.
      [1913 Webster]

   2. Having no rest; perpetually agitated. "Biscay's sleepless
      bay." --Byron.
      [1913 Webster] -- Sleep"less*ly, adv. --
      Sleep"less*ness, n.
      [1913 Webster]


WordNet (r) 3.0 (2006):

sleeplessness
    n 1: 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]