Mattress
/mˈætrəs/
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Definition
(noun) A pad on which a person can recline and sleep, usually having an inner section of coiled springs covered with foam or other cushioning material then enclosed with cloth fabric.
Sentence Examples
Mary raised the mattress in order to change the sheets.
Tom hid his money under his mattress.
CEFR Practice Quiz
They bought a new memory foam ____ to ensure they would have a more comfortable night's sleep.