Model 460 Bolster Cot Mattress The Model 460 Bolster Cot Mattress features beveled side bolsters that cradle the patient to provide a greater sense of security, and to minimize lateral patient movement. Vinyl-coated nylon cover is abrasion and fire-resistent, bacteriostatic, and will not absorb blood or bodily fluids. Compatible with Model 35A, Model 30NM, and Model 93ES cots. Available in burgundy .