GEL PLATINUM BOX TOP GP4 - 10 YEAR WARRANTY The Gel Platinum Box Top is a highly durable mattress bolstering the legendary 416 High profile spring unit. The Box Top has more of a soft feel. The Gel Platinum Box Top also utilizes leading edge technology with copper foam. Copper foam is an upgraded memory foam. It wicks heat away while killing 99 of bacteria while having anti-inflammatory properties. 416-13 6 Turn 6in High Profile Spring Unit 2in Super Soft Quilting FR Fiber w Acella Quiltflex Foam Edge Guard Supports Copper Foam Lumbar Support 1in Copper Foam Eurotop Box Top 10 Year Warranty