This is the HybridSelect Replacement Mattress for the HybridSelect Mattress Overlay System CHS ID # SAHYOVMATT109 . The HybridSelect featuring HealFloat is a low air loss mattress overlay system that revolutionizes the overlay market by providing customized comfort and optimal skin protection! HybridSelect with HealFloat combines the power of SelectAir low air loss systems with the ultimate skin protection of a ROHO HIGH PROFILE Cushion in the heel area to create an optimal environment for skin healing and protection. HybridSelect is so versatile! It sets up in minutes on top of any existing mattress- no need to store mattresses! The ROHO HIGH PROFILE cushion in the heel area, our HealFloat feature, protects heels and creates an optimal environment for wound healing. Simply remove the cushion to use on any chair for added skin protection. Features Mattress overlay and cushion are easy to clean. Durable, high-grade materials provide long product life. Specifications Size Mattress Overlay 4 Height x 80 Length x 36 Width 10 cm Height x 213 cm Length x 91 cm Width . Cushion 18 x 16 48 cm x 41 cm Mattress Overlay Weight Limit 300 lbs / 136 kg Warranty 2 Year Limited Warranty on ROHO Cushion Medicare Code E0372 * All measurements are approximate.