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.
The set is made from memory foam that allows more airflow, so heat doesn’t get trapped as easily, while the breathable cover adds to that cool feel. Toni Sutton, PEOPLE, 24 Apr. 2026 These are so clean-looking and go with anything, but for something that can go from day to night, there are the Project Cloud platform loafers with their sleek leather exterior and cushy memory foam insoles. Alexandra Pereira, Travel + Leisure, 23 Apr. 2026 Each memory foam layer is designed to be breathable while also serving its own purpose in terms of pressure relief and support. Julia Forbes, Wired News, 20 Apr. 2026 The soft cork footbed and thick, cushioning memory foam keeps feet comfortable while wearing these leather sandals for hours at a time. Stephanie Osmanski, Better Homes & Gardens, 16 Apr. 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

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Cite this Entry

“Memory foam.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/memory%20foam. Accessed 1 May. 2026.

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