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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.

The 31-year-old single parent said it had a big impact on her mental health and sleepless nights.

From BBC • Apr. 18, 2026

They simply show that a disciplined, diversified approach offers something rare in investing: higher odds of success with fewer sleepless nights.

From MarketWatch • Feb. 5, 2026

But it is the opposite scenario—losing the AI race—that is giving them more sleepless nights these days.

From The Wall Street Journal • Jan. 16, 2026

"It was a sleepless night to defuse more bombs in the region... the communication is still underway to consolidate the gained trust and the current good spirit."

From Barron's • Jan. 15, 2026

The exhausted army of his enemies, who had diced the night before, now spent the hours of darkness sleepless again, standing to arms or in their councils.

From "The Once and Future King" by T. H. White




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