| 摘要 |
PROBLEM TO BE SOLVED: To constitute a mattress which is easily washable. SOLUTION: The mattress 10 is formed by arranging cushion bodies 20, in a matrix shape, which are composed of a resin spring body 30 formed by arranging pluralities of sections 32 in a matrix shape, and of an elastic board 40 integrally arranged on the resin spring body 30.
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