Synonyms of sleeplessness

sleeplessness

noun

as in insomnia

the inability to obtain adequate sleep

the prolonged bouts of sleeplessness were starting to affect his work

Synonyms & Similar Words

• insomnia
• restlessness
• wakefulness
• alertness

Antonyms & Near Antonyms

• drowsiness
• sleepiness
• narcolepsy

Example Sentences

Recent Examples of sleeplessness

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

As exhaustion mounts, the boundary between waking life and possession collapses, forcing the women to confront both a supernatural threat and a system that thrives on sleeplessness. — Naman Ramachandran, Variety, 15 Jan. 2026