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Adjective: sleepless  sleeplus
  1. Experiencing or accompanied by sleeplessness
    "lay sleepless all night"
    - insomniac, watchful
     
  2. Always watchful
    - lidless

See also: alert, awake, sleeplessly, sleeplessness, watchful

Encyclopedia: Sleepless

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