Mattress having cover with memory fabric

摘要

A mattress includes a resilient member having an original size and shape and properties for compressing under the weight of a person lying on the mattress to a second size and shape. A mattress cover enveloping the resilient member includes a top panel having a memory fabric with particular stretch characteristics for expanding to the second size and shape when the person is lying on the mattress, and particular retention characteristics for returning to the original size and shape when the person is removed from the mattress. The memory fabric is especially desirable in avoiding the "hammock effect" in hybrid watermattress constructions.