| 摘要 |
A mattress construction includes a water mattress and a resilient peripheral cushion extending about the water mattress. A flexible cover is positioned on the resilient cushion, with the resilient cushion including a peripheral inner rail and a peripheral outer rail, the interior surface of the inner rail providing peripheral support for the water mattress. The inner and outer rails are interengaged whereby the inner rail resists upward movement of the outer rail.
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