plural mattresses
1
a
: a fabric case filled with resilient material (such as cotton, hair, feathers, foam rubber, or an arrangement of coiled springs) used either alone as a bed or on a bedstead
b
: a soft, airtight case that is designed to be inflated and used as a bed : air mattress
2
: a device (as of interwoven brush and poles) used to protect a shoreline, bank, or streambed from erosion
Examples of mattress in a Sentence
Recent Examples on the Web
The sliding bathroom works in collaboration with a foldable front dinette and telescopic driver-side bed platform with folding mattress.
—
New Atlas, 26 July 2025
Standard sheets likely won’t stay on a taller mattress.
—Bestreviews, Mercury News, 25 July 2025
The soft yet supple mattress is swathed in a water-, UV-, chlorine-, salt-, and mildew-resistant performance fabric that dries quickly and doesn’t retain moisture.
—Stacia Datskovska, Footwear News, 23 July 2025
The fire department showed up with two cribs, mattresses, baby clothes, diapers, wipes and toys for all of the twins' siblings — paid for by the Detroit Public Safety Foundation.
—Nour Rahal, Freep.com, 22 July 2025
See All Example Sentences for mattress
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New Atlas, 26 July 2025
Standard sheets likely won’t stay on a taller mattress.
—Bestreviews, Mercury News, 25 July 2025
The soft yet supple mattress is swathed in a water-, UV-, chlorine-, salt-, and mildew-resistant performance fabric that dries quickly and doesn’t retain moisture.
—Stacia Datskovska, Footwear News, 23 July 2025
The fire department showed up with two cribs, mattresses, baby clothes, diapers, wipes and toys for all of the twins' siblings — paid for by the Detroit Public Safety Foundation.
—Nour Rahal, Freep.com, 22 July 2025
See All Example Sentences for mattress
Cite this Entry
“Mattress.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mattress. Accessed 29 Jul. 2025.
Copy CitationKids Definition
mattress
noun
mat·tress
ˈma-trəs 
1
: a fabric case filled with springy material used as a bed or on a bedstead
2
: a sack that can be filled with air or water and used as a mattress
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