sleeper

noun
sleep·​er | \ ˈslē-pər How to pronounce sleeper (audio) \

Definition of sleeper

1 : one that sleeps
2 : a piece of timber, stone, or steel on or near the ground to support a superstructure, keep railroad rails in place, or receive floor joists : stringpiece
4 : someone or something unpromising or unnoticed that suddenly attains prominence or value the low-budget film became the summer's sleeper
5 : children's pajamas usually with feet usually used in plural
6 chiefly British : a small earring or stud worn to keep the hole of a pierced ear from closing

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Synonyms for sleeper

Synonyms

dozer, slumberer

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Examples of sleeper in a Sentence

Sleepers were awakened by the sound of a loud crash. He may turn out to be the sleeper in this year's election. The movie was the summer's sleeper. The movie became the sleeper hit of the summer.
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Recent Examples on the Web

Besides offering the support and comfort that Tempur-Pedic is known for, the Breeze line is specifically designed for hot sleepers. Alyssa Fiorentino, House Beautiful, "Everything You Need To Know Before Buying The Tempur-Pedic LUXEbreeze Mattress," 15 Apr. 2019 The asymmetrical design is also supremely comfy, allowing even side sleepers to get settled. Don Melanson, Popular Mechanics, "The Best Tents for Camping and Backpacking," 22 Mar. 2019 These are what doctors often call short or long sleepers, Rajkumar Dasgupta, M.D., a clinician and associate professor at Keck Medicine of USC’s division of pulmonary, critical care, and sleep medicine, tells SELF. Carolyn L. Todd, SELF, "How Much Sleep Do I Need?," 21 Mar. 2019 Two noteworthy styles: the Helix (starts at $600) and Helix Luxe (starts at $995) mattresses feature a medium feel (not too firm, not too soft), temperature regulation, and memory foam specifically built for side sleepers. Christian Allaire, Vogue, "7 New Online Mattress Companies That Want To Sweeten Your Dreams," 15 Feb. 2019 The Rise of the Poncho Light enough to be worn in a warm breeze but functional enough to take on a chill, the poncho has become a sleeper solution to dressing in a world rocked by climate change. Steff Yotka, Vogue, "The Top Trends of Pre-Fall 2019," 19 Dec. 2018 Longer journeys overnight would be possible with the sleeper configuration, which—with the exception of an attentive cabin crew and a bathroom—rivals the most luxurious first class airplane seat. Jonathan M. Gitlin, Ars Technica, "This Volvo concept could replace planes and trains with the automobile," 14 Sep. 2018 The full-length panoramic sun roof is smaller on the Grand California, but sleepers in the rear bed can still stare at the stars through one skylight and another sits above the dinette. Megan Barber, Curbed, "Volkswagen adds a larger, amenity-packed camper van to its lineup," 8 Aug. 2018 Jordan Wilkins: Face-melting sleeper No. 2, and probably the more melty one. Gary Gramling, SI.com, "David Johnson Is No. 2, Be Patient and Wait for Luck and Mahomes, the Non-Saquon Rookie You Want," 6 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sleeper.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of sleeper

12th century, in the meaning defined at sense 1

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Statistics for sleeper

Last Updated

23 Apr 2019

Look-up Popularity

Time Traveler for sleeper

The first known use of sleeper was in the 12th century

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More Definitions for sleeper

sleeper

noun

English Language Learners Definition of sleeper

: a person who sleeps in a particular way
: someone who is asleep
: a place or piece of furniture that can be used for sleeping

sleeper

noun
sleep·​er | \ ˈslē-pər How to pronounce sleeper (audio) \

Kids Definition of sleeper

1 : someone that sleeps I'm a light sleeper.
2 : a railroad car with berths for sleeping

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More from Merriam-Webster on sleeper

Rhyming Dictionary: Words that rhyme with sleeper

Thesaurus: All synonyms and antonyms for sleeper

Spanish Central: Translation of sleeper

Nglish: Translation of sleeper for Spanish Speakers

Britannica.com: Encyclopedia article about sleeper

Comments on sleeper

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