Mattress

A mattress is a large, usually rectangular pad for supporting a person lying down, especially for sleeping. It is designed to be used as a bed, or on a bed frame as part of a bed. Mattresses may consist of a quilted or similarly fastened case, usually of heavy cloth, containing materials such as hair, straw, cotton, foam, rubber, or a framework of metal springs.

Mattresses may also be filled with air or water.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 3.0

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