Dictionary.com
Thesaurus.com
Synonyms

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."

Keep Reading on Vocabulary.com

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:

He does not have a mattress, but up here at least some air is moving.

From Barron's Aug. 14, 2026

Cooling mattress toppers and bedding that use water or phase change materials may also help.

From Science Daily Jul. 29, 2026

The mattress maker filed for bankruptcy last month, reaching a deal to be acquired by Sleep Country Canada for nearly $702 million, around $530 million of which is in cash.

From The Wall Street Journal Jul. 23, 2026

The safest place for a baby to sleep is on a firm, flat mattress on their back in a clear cot with no toys inside, according to the baby sleep safety charity the Lullaby Trust.

From BBC Jul. 8, 2026

I tossed and turned on the human-hair mattress of my matchbox.

From "Secrets at Sea" by Richard Peck

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

From Barron's Aug. 12, 2026

Several children sleep on mattresses along the sidewalk in front of the home.

From Barron's Aug. 11, 2026

Under the scorching heat on Tuesday morning, Torres del Limonar is a shattered mountain of rubble, with mattresses, furniture, and belongings peeking out from the concrete.

From BBC Aug. 11, 2026

Jurors were told that mattresses were put down at the base of the tower to try to protect him because he was in a "precarious position".

From BBC Jul. 27, 2026

There were four deep mattresses, each piled with white blankets, laid on the floor along one side.

From "The Fellowship of the Ring" by J.R.R. Tolkien

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training