sleepiness
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
But caffeine hangs around in the body and blocks the build-up of sleepiness throughout the day.
From BBC ● Sep. 22, 2026
In a small study on people with insomnia, when they were given a false negative sleep score, those individuals reported sleepiness and fatigue, as well as lower levels of alertness and clear thinking.
From Slate ● Aug. 11, 2026
Existing drugs manage patients’ symptoms—notably excessive daytime sleepiness and difficulty sleeping at night—rather than the cause.
From The Wall Street Journal ● Aug. 6, 2026
Adenosine accumulates during periods of wakefulness and helps reduce brain activity, contributing to feelings of sleepiness.
From Science Daily ● May 30, 2026
A kind of heavy sleepiness fell over Matt as he was swayed along.
From "The House of the Scorpion" by Nancy Farmer
