DynaRest Premium Visco-Gel Infused Foam Mattress - 36x80inThe DynaRest Premium Visco Gel Infused Foam Mattress is a multi layer mattress featuring variable density foam providing optimized pressure redistribution and rapid heat dissipation. This pressure redistribution mattress uses visco gel infused memory foam to offer superior protection and prevention of bed sores and pressure ulcers. The middle layer features air channels allowing air to pass through open cells in the foam, while channeling heat away