Drive Medical's Gravity 9 foam mattress delivers comfort and support with multiple layers of latex-free foam. The full top layer of open-cell, visco-elastic memory foam improves surface conformance and support. Key Features: Multi-Layer Foam Construction: Foam mattress provides surface support and a low-friction surface with multiple layers of latex-free foam. Drive Gravity Foam: Designed for long-term comfort with multi-layer foam built for durability. Visco-Elastic Memory Foam Top Layer: Full top layer of open-cell, visco-elastic memory foam improves surface conformance and support for everyday comfort. Articulation Design: Bottom layer provides full-length horizontally scored articulation cuts extending the durability and life of the mattress. High-Density Foam Perimeters: Provide solid edge support and facilitate easy transfers with reinforced structural stability around the mattress edges. Side Rail Options: Available with or without raised side rails to meet different configuration needs. Heel Section Design: Heel section is sloped with channel-cut foam center designed to reduce contact on the heel area. Multi-Stretch Cover: Removable multi-stretch cover is fluid-resistant, low-friction, and vapor-permeable, helping protect against surface wear and moisture. Fire Compliance: Meets flammability standards CFR 1632 and CFR 1633. Product Specifications: Dimensions: 36"W x 80"L x 6"H Weight Capacity: 450 lbs Side Rails: Available Cover Material: Stretch, fluid-resistant nylon top with waterproof vinyl bottom Warranty: 36"W – 15 years limited foam, 3 year cover; 42"W – 7 years limited foam, 3 year cover Multiple layers of latex-free foam Open-cell visco-elastic memory foam top layer High-density foam perimeter support Horizontally scored articulation cuts CFR 1632 and CFR 1633 fire rated Item #15970 UPC: 822383291512