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mattress

American  
[ma-tris] / ˈmæ trɪs /

noun

  • mattresses
    plural
  1. a large pad for supporting the reclining body, used as or on a bed, consisting of a quilted or similarly fastened case, usually of heavy cloth, that contains hair, straw, cotton, foam rubber, etc., or a framework of metal springs.

  2. air mattress.

  3. a mat woven of brush, poles, or similar material, used to prevent erosion of the surface of dikes, jetties, embankments, dams, etc.

  4. a layer of concrete placed on bare ground, as to provide a footing; mat.

  5. a layer of any material used to cushion, protect, reinforce, or the like.


mattress British  
/ ˈmætrɪs /

noun

  1. a large flat pad with a strong cover, filled with straw, foam rubber, etc, and often incorporating coiled springs, used as a bed or as part of a bed

  2. Also called: Dutch mattress. a woven mat of brushwood, poles, etc, used to protect an embankment, dyke, etc, from scour

  3. Sometimes shortened to: mat. a concrete or steel raft or slab used as a foundation or footing

  4. a network of reinforcing rods or expanded metal sheeting, used in reinforced concrete

  5. civil engineering another name for blinding

"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

Other Word Forms

Noun Inflected Forms

Etymology

Origin of mattress

1250–1300; Middle English materas < Old French < Italian materasso < Arabic maṭraḥ mat, cushion

Explanation

Your mattress is the padded part of your bed that rests on top of the frame or box springs and is covered in a sheet. Some people prefer a soft, squishy mattress, while others like their mattresses firm. Some mattresses have a system of springs inside to provide just the right amount of firmness and bounce when you lie on them. Others are made of a dense kind of foam that supports a sleeper's body comfortably. The earliest mattresses were filled with straw or horse hair, and in many societies people don't sleep on mattresses at all, instead using mats or futons. The Arabic root of mattress is al-matrah, "thing thrown down."

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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:

"Japan is often described as a country suffering from sleep deprivation, and people here are very diligent," Riichiro Nakama, creative director at organiser Koala Sleep Japan, the mattress company.

From Barron's ● Oct. 6, 2026

On the floor was a single mattress, low to the ground, with carnation-pink satin sheets.

From Slate ● Sep. 22, 2026

"We found out he was putting his trousers under the mattress and pressing them as he slept."

From BBC ● Sep. 19, 2026

There’s smart devices such as Eight Sleep, known for its mattress sleep pod system, which delivers slumberers with a “sleep fitness” score.

From The Wall Street Journal ● Sep. 11, 2026

With a gesture, she directed the guard to feel beneath the mattress.

From "The Hiding Place" by Corrie ten Boom

“And we never heard back,” Miranda said, telling me she had seen people set up camp at the property, bringing in mattresses, book shelves and clothing racks.

From Los Angeles Times ● Sep. 12, 2026

Consumers share tips on how to “sleepmaxx” on social media, recommending devices, from wearables to smart mattresses and alarm clocks, along with DIY remedies like “sleepy girl mocktail” concoctions containing magnesium.

From The Wall Street Journal ● Sep. 11, 2026

Peterborough-based Care Zone, which has a warehouse on the edge of the city, plans to spend £80,000 this year on beds and mattresses for local families.

From BBC ● Sep. 1, 2026

One park in Pereira was transformed into a makeshift shelter with tents and mattresses.

From Barron's ● Aug. 12, 2026

Oma whimpers as they empty drawers, lift mattresses, peeling wallpaper for secret hideaways.

From "The Boy Who Dared" by Susan Campbell Bartoletti

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