| 摘要 |
A mattress employs a high density, high ILD convoluted polyurethane foam topper as a major transition layer over the supporting surfaces of an innerspring assembly i n order to provide a smooth transition from the support characteristics of the padding and upholste ry layers to the innerspring assembly. A high density, high ILD foam material of substantial thic kness is positioned between a padding or insulating layer over the innerspring assembly a nd overlying upholstery, with convolutions in the high density transition layer oriented to e xtend away from the innerspring assembly. The high density transition layer dominates or masks t he support characteristics of the innerspring assembly so that the perception of stiffness or board-like feel of an innerspring is greatly reduced upon initial loading of the mattress.
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