Thesaurus.com
Dictionary.com
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.

I lay mummy-style and wide-eyed next to him through the sleepless night.

From Los Angeles Times • May 8, 2026

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

From BBC • Apr. 18, 2026

Passengers touching down at airports in Australia, France, Germany, India, Russia, Taiwan and beyond told of sleepless nights and days-long ordeals to get out of the Middle East when war erupted.

From Barron's • Mar. 4, 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

Even in his own bed his nights often became sleepless horrors laced with toothache.

From "The Devil in the White City" by Erik Larson




Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "sleepless" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com