Opposite words for sleep:
disturbance, consciousness, toil, excitement, life, sleeplessness, restlessness, existence, disquiet, work, strain, wakefulness, motion, stir, nativity, rise, wake, agitation, movement, life span, origination, birth, genesis, unrest, rush, tumult, insomnia, immortality, creation, commotion, lifetime.
Usage samples:
  1. You can sleep all right.
    "More Jonathan Papers", Elisabeth Woodbridge.
  2. All dead things sleep!
    "A Breath of Prairie and other stories", Will Lillibridge.
  3. I will leave you now and get some sleep.
    "San-Cravate; or, The Messengers; Little Streams", Charles Paul de Kock.
  4. When do you sleep?
    "The-Circus-Boys-on-the-Flying-Rings-or-Making-the-Start-in-the-Sawdust-Life", Darlington, Edgar B. P..