sleepier; sleepiest
1
a
: ready to fall asleep
b
: of, relating to, or characteristic of sleep
2
: sluggish as if from sleep : lethargic
also : having little activity
a sleepy coastal village
3
: sleep-inducing
sleepily adverb
sleepiness noun

Examples of sleepy in a Sentence

She felt sleepy and went to bed. the sleepy children were carried up to bed
Recent Examples on the Web
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.
Carbon monoxide can also cause the victim to become sleepy, lose consciousness, or lose muscle function as the dangerous gas stops oxygen flow to the brain, heart, and other important cells and organs. Amelia McBride, Travel + Leisure, 12 Apr. 2025 This sleepy port town, penned in by snowy mountains on one side and endless freezing sea on the other, could have been where Spurs’ European dream died. Jack Pitt-Brooke, New York Times, 9 May 2025 But the crown jewel of them all was the South Florida Garlic Fest, a stinky ode to the bulb whose national music headliners (Buddy Guy, Blues Traveler, Trombone Shorty, among others), helped morph Delray Beach in the late 1990s from a sleepy beach town into a destination. Phillip Valys, Sun Sentinel, 8 May 2025 This sleepy rural town had blasted onto the international map as the site of the 2024 Olympic surf competition. Cassidy Randall, Forbes.com, 1 May 2025 See All Example Sentences for sleepy

Word History

First Known Use

13th century, in the meaning defined at sense 1a

Time Traveler
The first known use of sleepy was in the 13th century

Browse Nearby Words

Cite this Entry

“Sleepy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sleepy. Accessed 13 May. 2025.

Kids Definition

sleepy

adjective
sleepier; sleepiest
1
: ready to fall asleep
2
: quietly inactive
a sleepy village
sleepily adverb
sleepiness noun

Medical Definition

sleepy

adjective
sleepier; sleepiest
: ready to fall asleep
sleepiness noun

More from Merriam-Webster on sleepy

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!