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

Our eyes send signals to the brain’s master clock, which coordinates our body’s systems and processes, such as wakefulness, body temperature and energy metabolism. — Payal Dhar, Scientific American, 27 Oct. 2026

Researchers in China used deep-learning algorithms to analyze REM sleep, deep sleep, light sleep, total sleep duration, wakefulness after sleep onset and sleep irregularity. — Melissa Rudy, FOXNews.com, 9 Oct. 2026

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