| 摘要 |
An improved waterbed mattress includes a bladder having a layer of insulation material extending substantially from end to end and side to side therein, which insulation material has a plurality of generally upright holes opening through the top and bottom surfaces thereof for improved heat transfer from the warmed body of water below the insulation material to the top surface of the bladder 12. The holes are preferably arranged in a pattern having a greater density of holes toward the foot end of the mattress and a decreased density of holes toward the head end of the mattress.
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