1 sleepless | Definition of sleepless

sleepless

adjective
sleep·​less | \ ˈslÄ“p-lÉ™s How to pronounce sleepless (audio) \

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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Other Words from sleepless

sleeplessly adverb
sleeplessness noun

Examples of sleepless in a Sentence

He lay sleepless in bed.

Recent Examples on the Web

Joe’s pick: Alabama 45, Duke 21 Pro says: Nick Saban has probably had many sleepless nights after his team lost the national championship 44-16 to Clemson. Joseph Goodman | Jgoodman@al.com, al, "Bo Nix is a liability; So are Alabama linebackers," 29 Aug. 2019 The sweaty palms, the nervous laughter, the sleepless nights? oregonlive.com, "How to combat high drama in high school fall sports tryouts," 27 Aug. 2019 This was by design — one sleepless night in a tent with your kids is not too hard to recover from. Milwaukee Journal Sentinel, "No cooler is needed for these easy, kid-friendly campsite meals," 14 Aug. 2019 The assumptions that have undergirded the West’s relationship with mainland China for the past 25 years were wrong, and have contributed to his recent sleepless nights. Michael Brendan Dougherty, National Review, "Hong Kong Understands the Uncommon Value of the Common Law," 31 July 2019 Brace yourself for sleepless nights spent ruminating on this horrible mistake. Claire Friedman, The New Yorker, "Things to Do During Your Karaoke Song’s Too Long Instrumental Interlude," 31 July 2019 Exhausted from the first three sleepless nights of his newborn Brody’s life, Brett Anderson wasn’t himself Thursday evening. Rusty Simmons, SFChronicle.com, "Rangers use back-to-back 5-run innings to rout A’s," 25 July 2019 Danielle Fishel wouldn’t trade in the sleepless nights for anything to be a mom to son Adler. Karen Mizoguchi, PEOPLE.com, "Danielle Fishel Opens Up About 'Best Days of My Life' 3 Weeks After Son Adler's Birth," 19 July 2019 So, with a lot of sleepless nights thinking hard about the next year, I was blessed with the opportunity to come encounter with a lot of great programs and opportunities to play my grad-transfer year. Michael Shapiro, SI.com, "UNLV Grad Transfer Shakur Juiston Commits to Oregon," 12 July 2019

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.

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First Known Use of sleepless

15th century, in the meaning defined at sense 1

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More Definitions for sleepless

sleepless

adjective

English Language Learners Definition of sleepless

: without sleep
: not able to sleep

sleepless

adjective
sleep·​less | \ ˈslÄ“-plÉ™s How to pronounce sleepless (audio) \

Medical Definition of sleepless

: not able to sleep : insomniac

Other Words from sleepless

sleeplessness noun

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