sleepless

adjective sleep·less \ ˈslēp-ləs \

|Updated on: 31 May 2018

Examples: sleepless in a Sentence

Definition of sleepless

1 : not able to sleep

lay sleepless with fever

2 : affording no sleep

sleepless nights

3 : unceasingly active or operative

sleepless casinos

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sleeplessly

adverb

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sleeplessness

noun

See sleepless defined for English-language learners

See sleepless defined for kids

Examples of sleepless in a Sentence

He lay sleepless in bed.

Recent Examples of sleepless from the Web

Following a sleepless night (too much adrenaline) and a few hours of early morning photos Monday, Power addressed the media and explained those shouts weren't for his competitors.

— jim ayello, Indianapolis Star, "Will Power popular Indy 500 winner among IndyCar veterans," 28 May 2018
The suit also says the five teens have suffered severe emotional distress, shock, horror and psychological trauma, as well as sleepless nights, nausea and headaches as a result.

— uriel j. garcia, azcentral, "Civil suit claims Hamilton High coach knew about sexual abuse between players," 16 May 2018
After a sleepless night, the Kremlin leadership, huddled in a clinic outside Moscow with the ailing general secretary, Yuri Andropov, realised nothing was going to happen.

— The Economist, "The world almost ended in 1983," 5 May 2018
There have been a few sleepless nights Whiteside admits.

— manny navarro, miamiherald, "Playoffs haven't gone the way Hassan Whiteside expected for himself. But there's time | Miami Herald," 18 Apr. 2018
The first couple of months after the baby arrives are tough and filled with sleepless nights and tending to a baby that needs a lot of attention.

— Time, "Ask Dr. Ruth: Can I Safely Have Sex While Pregnant?," 12 Apr. 2018
This has meant many 17-hour days, sleepless nights, a couple bouts with bronchitis and the flu, and working many weekends and holidays.

— marian kim-phelps, Pomerado News, "A day in the life of a school superintendent," 12 Apr. 2018
That wasn’t the case seven years ago, when McIlroy turned a dream morning into a sleepless night.

— tara sullivan, BostonGlobe.com, "Past failure doesn’t leave Rory McIlroy intimidated," 7 Apr. 2018
These survivors live with anxiety and fear, sleepless nights and wandering thoughts — unable to escape the sights, sounds and smells of Feb. 14: The crunch of glass beneath their feet.

— erika pesantes, Sun-Sentinel.com, "Bodies, blood, bullets: What Parkland survivors saw in ambushed classrooms," 6 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sleepless.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.