Hypertext Webster Gateway: "sleeplessness"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Sleepless \Sleep"less\, a.
1. Having no sleep; wakeful.
2. Having no rest; perpetually agitated. ``Biscay's sleepless
bay.'' --Byron. -- {Sleep"less*ly}, adv. --
{Sleep"less*ness}, n.
From WordNet (r) 1.7 (wn)
sleeplessness
n : a temporary state in which you are unable (or unwilling) to
sleep [syn: {wakefulness}] [ant: {sleepiness}]
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