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Definitions

sleepless

[sleep-lis] / ˈslip lɪs /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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But it wouldn’t be the last sleepless night for the OpenAI team.

From The Wall Street Journal ● Sep. 8, 2026

"I'm trying to stay strong for the children but behind closed doors I'm struggling with sleepless nights worrying."

From BBC ● Sep. 5, 2026

“I had sleepless nights worrying about keeping these guys from being envious or jealous of one another,” Marsh said in 1999.

From Los Angeles Times ● Aug. 7, 2026

"As the captain, I had to keep reassuring my crew, along with my wife and children back home, who spent many sleepless nights worrying about us."

From Barron's ● Aug. 4, 2026

Every woman in the county—in the country—probably spent the same sleepless night I did on September 11.

From "Hattie Big Sky" by Kirby Larson




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