The Drive Medical Gravity 9 is the top-tier foam mattress in the Gravity series, designed for long-term care and homecare settings. It features four layers of latex-free foam , including a full-length, open-cell visco-elastic memory foam top layer that provides superior immersion and pressure distribution. The mattress incorporates a 6" to 4" sloped heel section with a channel-cut foam center to reduce contact pressure on the lower extremities. For stability and ease of transfer, the Gravity 9 includes high-density foam perimeters. The base layer is horizontally scored with articulation cuts , ensuring the mattress conforms to adjustable bed positions while extending the overall lifespan of the foam. The mattress is encased in a premium multi-stretch nylon cover that is fluid-resistant, low-shear, and vapor-permeable to support surface hygiene. Key Features 450 lb Weight Capacity: Reinforced 4-layer construction supports a broad range of individuals. True Memory Foam Top Layer: Open-cell visco-elastic foam for maximum comfort and even weight distribution. Tapered Heel Section: Sloped 6" to 4" design reduces contact pressure on the heel area. Raised Rail Options: Available with an elevated perimeter for a defined transfer edge. Firm Side Bolsters: High-density perimeters support individuals during entry and exit. Advanced Hygiene Cover: Fluid-proof, antimicrobial cover meets CFR 1632 and 1633 fire standards. Technical Specifications & Identifiers Variant SKU Size Raised Rails? GTIN-12 (UPC) HCPCS Code 15996 36" x 76" x 6" No 822383291550 E0184 15970-4280-RR 42" x 80" x 6" Yes 822383586526 E0184 15970-4280 42" x 84" x 6" No 822383586519 E0184