| 摘要 |
PROBLEM TO BE SOLVED: To provide a set of a coverlet and mattress which can keep the body arm as a hole and prevent the coverlet from slipping down. SOLUTION: So that the body may stick fast to the coverlet, a coverlet containing foamed styrene, buckwheat chaff and the like is attached to the futon main body 1, and when the futon is used, the gap between the coverlet and body is eliminated to maintain the warmth. Furthermore, a blanket 4 to cover shoulders and the neck is attached so that shoulders and the neck may not be cooled, and a pocket 3 for legs and a mattress to insert the mattress are formed to prevent the coverlet from slipping down.
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