Definition of sleepless in US English:



  • 1Characterized by or experiencing lack of sleep.

    ‘another sleepless night’
    ‘Lisa lay sleepless’
    • ‘I have until Friday at 12 to get it done, which means working all day today and tomorrow and possibly having a couple of sleepless nights.’
    • ‘Lights that have caused residents in Horwich to suffer sleepless nights for the past year are to be allowed to stay, a government inspector has ruled.’
    • ‘Once back in the office they find themselves trapped in a cycle of long hours and sleepless nights.’
    • ‘You don't necessarily have to live with the sleepless nights of insomnia.’
    • ‘It is the stuff of anxious days and sleepless nights.’
    • ‘The levels of adrenaline and endorphins remain high and can cause a feeling of restlessness and even a sleepless night.’
    • ‘She spent an anxious and sleepless night made worse by twenty-four hours without food.’
    • ‘He actually had some sleepless nights as he went on checking the alertness of the security personnel drafted for the exhibition.’
    • ‘She's still experiencing sleepless nights and cries at the drop of a hat.’
    • ‘It's not going to be easy; it'll be a year of hard work and disillusionment, of sleepless nights and endless days.’
    • ‘Manolo, the horseman, haggard after twelve hours in the saddle and a sleepless night, reached out to shake me fully awake.’
    • ‘But the nights were still filled with sleepless hours - for all of us.’
    • ‘They will blame the policemen's lack of diet consciousness, sleepless nights, and reckless food habits.’
    • ‘Every night he went home alone and spent many sleepless hours lying on his bed, waiting for the day he could be with her.’
    • ‘I've never had a sleepless night in my life and will easily sleep 12 hours.’
    • ‘Hours of stress, sleepless nights and the worry alone couldn't be good for anyone.’
    • ‘The answer comes to us after much soul searching and many sleepless nights.’
    • ‘One lady blamed the library for her sleepless nights, claiming once she has borrowed a good book she stays up all night till she finishes it.’
    • ‘And on the occasions when a pill was mistakenly forgotten, were all the sleepless nights that followed nothing but a hollow joke?’
    • ‘I've worked really long hours, missed lunch breaks, and had several sleepless nights.’
    wakeful, restless, disturbed, without sleep
    View synonyms
    1. 1.1literary Continually active or moving.
      ‘the sleepless river’
      • ‘The traffic of the great city went on in the deepening night upon the sleepless river.’