| 摘要 |
The present invention is directed to a bed having a generally rectangular foundation and mattress, an air chamber located beneath having a plurality of sections, and at least one air chamber under a portion of the mattress, a controller for regulating the amount of air in the air chamber, and a mattress retainer placed between the mattress and the foundation comprising a tongue and extending toward the foot of the bed a sufficient distance to make contact with both the mattress and the foundation to increase the friction sufficiently to prevent slippage of the mattress when the heat is raised.
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