asleep

1 of 2

adjective

1
: being in a state of sleep
2
: dead
3
: lacking sensation : numb
4
b
: not alert : indifferent

asleep

2 of 2

adverb

1
: into a state of sleep
2
: into the sleep of death
3
: into a state of inactivity, sluggishness, or indifference

Examples of asleep in a Sentence

Adjective “Are you asleep?” “No, I'm awake.” He tries to clean up the house while the kids are asleep. The cats are asleep on the floor. She was still asleep at noon.
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.
Adjective
Chronic insomnia — an inability to fall or stay asleep or waking up much earlier than desired — could lead to serious issues, including heart attacks and stroke. Andrew Torgan, CNN, 23 Mar. 2025 Fernandez-Mendoza: Our team was the first to show that those complaining about insomnia – difficulty falling or staying asleep – were more likely to have high blood pressure and be at risk for heart disease. Julio Fernandez-Mendoza, The Conversation, 20 Mar. 2025
Adverb
Tee Rainer woke up from a nap around 10:15 p.m. on Oct. 22, 2023, and couldn’t fall back asleep. Nick Ferraro, Twin Cities, 19 Mar. 2025 Eating kiwi before bed is the latest hack that people swear by for falling asleep faster and staying asleep longer. Kathleen Ferraro, Verywell Health, 17 Mar. 2025 See All Example Sentences for asleep

Word History

Etymology

Adjective

Middle English aslepe, from Old English on slæpe

First Known Use

Adjective

12th century, in the meaning defined at sense 1

Adverb

12th century, in the meaning defined at sense 1

Time Traveler
The first known use of asleep was in the 12th century

Browse Nearby Words

Cite this Entry

“Asleep.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/asleep. Accessed 31 Mar. 2025.

Kids Definition

asleep

1 of 2 adjective
1
: being in a state of sleep
2
: lacking sensation : numb
my foot was asleep

asleep

2 of 2 adverb
: into a state of sleep

Medical Definition

asleep

1 of 2 adjective
1
: being in a state of sleep
2
: lacking sensation : numb

asleep

2 of 2 adverb
: into a state of sleep

More from Merriam-Webster on asleep

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!