SLEEPLESSNESS Synonyms: 7 Similar and Opposite Words

sleeplessness

noun

as in insomnia

the inability to obtain adequate sleep the prolonged bouts of sleeplessness were starting to affect his work

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of sleeplessness If a woman’s brain fog is recorded as early signs of dementia, her anxiety as psychiatric condition, or her sleeplessness as an isolated complaint, the symptom or misdiagnosis may enter the medical record, but its connection to menopause disappears. — Yulin Hswen, STAT, 27 Aug. 2026 Symptoms Symptoms can include sleeplessness, extreme worry about the baby or childbirth, restlessness and a racing heartbeat. — Jen Christensen, CNN Money, 13 Aug. 2026 When a roadside bomb struck his Humvee convoy months later, the explosion’s shock wave swept through his body before headaches and sleeplessness set in for days. — ABC News, 6 Aug. 2026 Within weeks, the pattern looked closer to anxiety than disagreement, including sleeplessness and panic before meetings. — Expert Panel®, Forbes.com, 27 July 2026 Because of their history of poor sleep, people with insomnia may suffer from anxiety about getting inadequate sleep, which can then increase sleeplessness at night. — Lauren Jarvis-Gibson july 18, Fort Worth Star-Telegram, 18 July 2026 Other symptoms included headache, chills, weakness and sleeplessness. — Ken Alltucker, USA Today, 17 July 2026 This sleeplessness has reportedly persisted in jail. — Diego Lasarte, New Yorker, 21 Apr. 2026 Like me, Pinker also suffered from weeks of sleeplessness and anxiety. — Katie Jackson, Outside, 19 Mar. 2026

Recent Examples of Synonyms for sleeplessness

Noun

Mild effects, such as drowsiness, headache, insomnia, nausea, and vomiting, are common.

— Encyclopedia Britannica, Encyclopedia Britannica, 28 Aug. 2026
In the months leading up to January 2023, she had been prescribed over a dozen psychiatric medications and several times checked herself into a hospital to treat her depression, anxiety, insomnia and suicidal thoughts.

— Nicki Brown, CNN Money, 26 Aug. 2026

Definition of insomnia

Noun

He’s never settled into a particular genre and, perhaps due to that wide-ranging restlessness, the Academy of Motion Picture Arts and Sciences will be awarding him an honorary Oscar in November.

— Emily Zemler, Los Angeles Times, 26 Aug. 2026
Tisch went to law school, eventually landing (with some restlessness) in real estate finance at Vornado Realty Trust and then at information services company KGB.

— Allie Garfinkle, Fortune, 26 Aug. 2026

Definition of restlessness

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sleepless

sleeplessness

sleep out

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“Sleeplessness.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sleeplessness. Accessed 2 Sep. 2026.

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Synonyms of sleeplessness

noun

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