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Adverb: sleeplessly  sleep-lus-lee
  1. Without sleep; in a sleepless manner
    "he was lying in bed sleeplessly"

See also: sleepless

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sleeping partner
sleeping pill
sleeping policeman
sleeping room
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sleeping tablet
sleep-learning
sleepless
sleepless person
sleeplessly
sleeplessness
sleepover
sleepwalk
sleepwalker
sleepwalking
sleepwear
sleepy
sleepy dick
sleepy sickness
sleepy-eyed