Five distinct convoluted zones help to improve surface contact and promote comfort for head, trunk, and feet. High quality 1.8 lb. density foam helps provide pressure redistribution and quick recovery of the support surface. 450 lb. weight capacity Non-skid bottom cover helps keep mattress in place during head and knee articulation. Fluid-proof nylon woven cover with zipper guard helps prevent fluid ingress. Mattress cover zipper opens on 3 sides for ease of foam inspection and cover replacement. Constructed with high quality foams that are sourced from the USA and have CertiPUR-US certification. Suitable for multiple care environments including home, residential, and long-term care.