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sleepwalk

American  
[sleep-wawk] / ˈslipˌwɔk /

verb (used without object)

sleepwalks, present (3rd person singular) sleepwalked, past participle, past sleepwalking present participle
  1. to engage in sleepwalking.


noun

  1. an act of sleepwalking; somnambulation.

sleepwalk British  
/ ˈsliːpˌwɔːk /

verb

  1. (intr) to walk while asleep See also somnambulism

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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Etymology

Origin of sleepwalk

First recorded in 1920–25; back formation from sleepwalking

Explanation

To sleepwalk is to walk around despite being sound asleep. If you wake up outside in your PJ's, then, chances are, you were sleepwalking. A fancier word for sleepwalk is sonamubulate, and the act of sleepwalking is known as sonambulism by doctors who study and treat sleep disorders. It's considered a disorder to sleepwalk because normally your sleeping brain keeps you from performing actions like walking (even when you dream that you're walking). In Shakespeare's play Macbeth, there is a famous scene in which Lady Macbeth sleepwalks because of her guilty conscience.

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Vocabulary lists containing sleepwalk

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.

See Examples For:

They could sleepwalk their way through the first three quarters and still pull it out in the end.

From The Wall Street Journal Jan. 19, 2026

Virginia transfer Cofie had just four points in the first half as Rice and Jaden Brownell led the charge during a first half the Trojans seemed to sleepwalk through at times.

From Los Angeles Times Nov. 4, 2025

Although this recipe does involve more moves than, say, sleepwalk chicken and vegetables, it’s still blissfully easy.

From Seattle Times May 26, 2024

Perhaps cognizant that he needs to sleepwalk through a couple more interviews before the primary on March 5, Garvey has subjected himself to short TV segments of late.

From Slate Feb. 5, 2024

Unfortunately, this theory would also retroactively outlaw choreograph, diagnose, resurrect, edit, sculpt, sleepwalk, and hundreds of other verbs that have become completely unexceptionable.

From "The Sense of Style" by Steven Pinker

When Lady Macbeth sleepwalks into her culpable death, the most moving aspect is the gruff way her husband moves on with his business.

From Los Angeles Times May 1, 2024

She sleepwalks, talks to herself and dreads the ringing phone because the caller, “no matter the voice, will not be the voice.”

From New York Times Jun. 9, 2020

Although Kendrick’s pint-size dynamo once pushed the Bellas beyond their la-la-la comfort zone, she basically sleepwalks through this third go-round.

From Washington Post Dec. 20, 2017

"The person who sleepwalks will appear to be awake but they're really not. And we know this from monitoring their brainwaves," he says.

From BBC Dec. 4, 2017

Team sleepwalks through a season in which it gets off to 1-10 start, during which Williams says: “That doom and gloom stuff ain’t going to cut it with me. … Next question.”

From Washington Times Nov. 8, 2014

She must have heard him cry, sleepwalked to the nursery, lifted him out of the crib while she was still asleep, then woke to discover the crib empty.

From The Wall Street Journal Nov. 6, 2025

When the inquiry met in Belfast last May she rejected suggestions the executive had "sleepwalked" during the pandemic.

From BBC May 20, 2025

The Clippers sleepwalked into a 10-point deficit, didn’t make a three-pointer for 13 minutes and trailed by six at halftime.

From Los Angeles Times Apr. 8, 2023

In a contest that started at 11:15 a.m. local time, Maryland sleepwalked through the first 10 minutes.

From Washington Times Mar. 16, 2023

Sourmelina, dreaming of chorus girls, had sleepwalked across the throw rug.

From "Middlesex: A Novel" by Jeffrey Eugenides

When she sings "Let me wake up from this horrible dream", it sounds like she's sleepwalking.

From BBC Jul. 18, 2026

“People are kind of sleepwalking into disaster,” Nestler said.

From MarketWatch Jun. 16, 2026

“Myanmar appears to be sleepwalking into China’s sphere of influence,” the ISP-Myanmar team wrote in an annual report published in January.

From The Wall Street Journal Jun. 12, 2026

On a never-ending feed we watch the cute and profane, sleepwalking toward an emotional state beyond shock as entertainment: the banality of passive consumption.

From Slate May 12, 2026

Is Grandpop just sleepwalking, and sleeptalking, and sleepeating?

From "As Brave As You" by Jason Reynolds

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