memory foam

American  

[mem-ree fohm] / ˈmɛm ri ˌfoʊm /

noun

• memory foams
  plural

1. a dense polyurethane foam that is sensitive to pressure and temperature and assumes the contours of what is placed on it, while conforming closely and without springing back immediately after the weight is removed, as if retaining a memory of it: used especially in pillows, mattresses, and mattress toppers.

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Other Word Forms

Derived Forms

• memory-foam
  adjective

Inflected Forms

Nouns

• memory foams
  plural

Example Sentences

See Examples For:

memory foam

Would it be bamboo charcoal memory foam, a C-shaped full body or a honeycomb hole?

From The Wall Street Journal ● Feb. 17, 2026

Sewing machines hum in the background as workers stitch fabric into the right shape to cover memory foam cushions.

From BBC ● May 14, 2025

At the same time, several new alternative mattress technologies hit the market, including airbeds, the Sleep Number, Tempur-Pedic and memory foam.

From Los Angeles Times ● Jul. 23, 2024

After the first container exploded, a second metal shipping container — believed to hold memory foam — fell down on top of it and caught fire, but no other cars ignited.

From Seattle Times ● Nov. 23, 2023

No innovations in sleep existed since memory foam in 1966, so I decided to use technology to help people get more quality sleep faster.

From New York Times ● Dec. 7, 2022