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Meaning of sleepless

sleep•less

Pronunciation: (slēp'lis), [key]
— adj.
  1. without sleep: a sleepless night.
  2. watchful; alert: sleepless devotion to duty.
  3. always active: the sleepless ocean.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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