Span-America Geo-Mattress Max Therapeutic Foam MattressThis mattress has a three tier, zoned design to provide optimal support from head to toe Visco elastic high resiliency "memory" foam in the foot section enhances the pressure reducing properties of the Heel Slope feature Firm perimeter bolsters aid safe transfers, stable edge of bed sitting and reduced risk of gaps at siderails Extra soft 2" topper provides maximum immersion and reduces shear to soft tissue while reducing heat and moisture buildup 400