The Permobil Atlas Hybrid Therapeutic Surface combines zoned foam, interconnected air chambers and firm transfer borders in 35-, 39-, 42- and 48-inch widths, all 80 inches long and 7 inches high. Published capacity is 450 lb for the 35- and 39-inch widths and 600 lb for the 42- and 48-inch widths; confirm the bed deck, exact width, self-adjusting or optional powered configuration, cover and applicable support-surface care plan before purchase.