SLEEPLESS Synonyms: 34 Similar and Opposite Words

sleepless

adjective

ˈslēp-ləs

Definition of sleepless

as in wakeful

not sleeping or able to sleep lay sleepless with worry

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Antonyms & Near Antonyms

Example Sentences

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Recent Examples of sleepless Like most expectant parents, Briana Faucette heard the typical warnings about sleepless nights. — Roni Robbins, AJC.com, 20 July 2026 No, special teams coach Dave Toub shouldn’t spend sleepless nights scheming up how to improve his team’s field-goal defense for next season. — Jesse Newell, New York Times, 15 July 2026 Today, there are no more bodies left to bury, but those sleepless nights remain. — Bo Evans, CBS News, 2 July 2026 Fatigue, severe pain, heavy and irregular flow, sleepless nights on the bathroom floor. — Escher Walcott, PEOPLE, 16 June 2026 See All Example Sentences for sleepless

Recent Examples of Synonyms for sleepless

Adjective

Low to medium doses show a reduction in the alpha frequency of brain waves (which correspond to relaxed and wakeful states), along with rising entropy, a signature finding of sober brains sinking deeper into a trip.

— Oshan Jarow, Vox, 4 Nov. 2024
Having the right pillow can make a big difference between a peaceful night’s sleep and a restless, wakeful one.

— Casey Clark, Peoplemag, 9 Sep. 2024