Synonyms of wakefulness

wakefulness

noun

as in insomnia

the inability to obtain adequate sleep

a nagging wakefulness that seemed resistant to all of the standard home remedies

Synonyms & Similar Words

• insomnia
• restlessness
• alertness
• sleeplessness

Antonyms & Near Antonyms

• drowsiness
• sleepiness
• narcolepsy

Example Sentences

Recent Examples of wakefulness

Porodina is fascinated with hypnagogia, the threshold state between sleep and wakefulness. — Joelle Diderich, Footwear News, 23 Sep. 2026

Ninety-five out of 111 imaged cells lit up during slow-wave sleep and quiet, motionless wakefulness, and fell silent during running and REM sleep. — Jacek Krywko, ArsTechnica, 18 Sep. 2026

In reality, evening light is one of many factors that can influence the transition from wakefulness to sleep. — Ascend Agency, New York Daily News, 11 Sep. 2026

Orexins help regulate wakefulness, as well as attention, motivation and the brain’s reward system. — Harriet Marsden, TheWeek, 20 Aug. 2026

But in people with narcolepsy, such boundaries become blurred, allowing elements of sleep to intrude into wakefulness in varying ways. — Daryl Austin, USA Today, 8 July 2026

The clinical data demonstrated significant improvements in wakefulness and reductions in excessive daytime sleepiness at week eight, outperforming the placebo with a generally favorable safety profile. — Sasirekha Subramanian, Forbes.com, 29 June 2026

Daytime light helps set the body’s circadian rhythms, which play an important role in sleep, wakefulness, and other brain and body functions. — Emily Kay Votruba, EverydayHealth.com, 25 June 2026

As a result, many night owls feel groggy in the morning because their bodies have not yet fully prepared for wakefulness. — Olivia McIntosh, Martha Stewart, 19 June 2026