as in wakeful
not sleeping or able to sleep
lay sleepless with worry
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Recent Examples of sleepless
Left unchecked, those feelings can worsen into sleepless nights, a loss of appetite, inability to focus, impaired relationships, depression and even physical illness.
—
Hunter Boyce, AJC.com, 27 Jan. 2026
Continue reading … SOUND OF MADNESS – Mystery hum rattles American city as residents report sleepless nights and rising fear.
—FOXNews.com, 23 Jan. 2026
Countless athletic coaches have sleepless nights (and maybe lost their jobs) because of a mismatch of purpose and determination.
—Neil Senturia, San Diego Union-Tribune, 12 Jan. 2026
Even worse, their father's (Richard Armitage) return home seems unlikely with each sleepless night.
—Lydia Price, PEOPLE, 23 Dec. 2025
See All Example Sentences for sleepless
Hunter Boyce, AJC.com, 27 Jan. 2026
Continue reading … SOUND OF MADNESS – Mystery hum rattles American city as residents report sleepless nights and rising fear.
—FOXNews.com, 23 Jan. 2026
Countless athletic coaches have sleepless nights (and maybe lost their jobs) because of a mismatch of purpose and determination.
—Neil Senturia, San Diego Union-Tribune, 12 Jan. 2026
Even worse, their father's (Richard Armitage) return home seems unlikely with each sleepless night.
—Lydia Price, PEOPLE, 23 Dec. 2025
See All Example Sentences for sleepless
Recent Examples of Synonyms for sleepless
Adjective
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Tips to Break the Bedtime Screen Habit Dr. Verma, who was not involved in the research, offers the following tips to prevent wakeful effects from smartphones and get better sleep: Avoid screens 30 to 60 minutes before bedtime.—
Emily Kay Votruba,
EverydayHealth.com,
31 Mar. 2025
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Lauren Goode: Who among us doesn't want to have a nap gently guided by our wakeful rhythm?—
Lauren Goode,
WIRED,
16 Jan. 2025
Adjective
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While native vegetation isn't adapted to fire, buffelgrass thrives on it — its seeds stir awake in the aftermath of a burn, in a new world that's emptied and fresh for the taking.—
Shi En Kim,
AZCentral.com,
13 Mar. 2026
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Assadollahzadeh lay awake in his bed, wrestling with the enormity of the decision he was now compelled to make.—
Don Riddell,
CNN Money,
12 Mar. 2026
Cite this Entry
“Sleepless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sleepless. Accessed 17 Mar. 2026.
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