sleeping
Americannoun
adjective
-
of, relating to, or having accommodations for sleeping.
a sleeping compartment.
-
used to sleep in or on.
a sleeping jacket.
-
used to induce or aid sleep or while asleep.
sleeping mask.
Other Word Forms
Etymology
Origin of sleeping
Middle English word dating back to 1250–1300; see origin at sleep, -ing 1, -ing 2
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.
This gave the researchers repeated opportunities to examine how neural activity and growth hormone regulation changed as the animals moved between sleeping and waking.
From Science Daily ● Oct. 17, 2026
According to Teymouri, authorities have video footage of Xuan walking through a room of the kids sleeping in rows and sweeping a flashlight, “like a warden.”
From Los Angeles Times ● Oct. 17, 2026
He spent his days sleeping in, going to the gym, cooking with friends and playing poker.
From The Wall Street Journal ● Oct. 13, 2026
"Due to my health challenges, there are days where I literally can't feel my legs, they feel like jelly, there's days where I'm completely exhausted after sleeping, I wake up completely shattered."
From BBC ● Oct. 13, 2026
“For weeks now, I have not been sleeping at nights, and do you know why this is, Elizabeth?” she said.
From "An Elephant in the Garden" by Michael Morpurgo
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