memory foam

noun

: a dense polyurethane foam that becomes more pliable when in contact with heat

Examples of memory foam in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Softly Supportive And On Sale Sleep Number The ComfortFit Pillow is made with memory foam pieces and down-alternative fibers for gentle support that conforms to your head and neck. — V Brand Stories, Forbes.com, 28 Aug. 2026 The memory foam gently hugs your body, and our tester said their hip pain disappeared after sleeping on it. — Toni Sutton, PEOPLE, 26 Aug. 2026 Making memory foam breathe Cooling materials can only do so much if warm air remains trapped inside a mattress, so ventilation makes up another substantial part of the design. — New Atlas, 24 Aug. 2026 Each Jaxson Dart Coleman Tent comes with its own dizzying array of training tables, memory foam pillows, large gel ice packs and a CAT scan machine. — Bill Reinhard, New York Daily News, 23 Aug. 2026 See All Example Sentences for memory foam

Word History

First Known Use

1977, in the meaning defined above

Time Traveler
The first known use of memory foam was in 1977

Rhymes for memory foam

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Browse Nearby Words

memory card
memory foam
memory hole
See all Nearby Words

Cite this Entry

“Memory foam.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/memory%20foam. Accessed 4 Sep. 2026.

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