Gravity 7 Long Term Care Mattress 36 x 80 x 6 Bath Shower Chair Accessories 28 x 18 * Single MSHQ BH190XL 28 x 18 * Single compartment cushion * 4 air cells provide prevention and healing relief from ischemic ulcers (pressure sores) * Maximizes pressure distribution blood flow and nutrient exchange as well as shock and impact * Conforms to the body s shape and adjusts to body changes over time * Includes cover * 2 year warranty 5V AA size alkaline batteries or optional rechargeable battery pack or AC power (charging stand) * Powerful Memory for 72 hours of data storage * Compatible Works with Nonin s full line of sensors * User friendly Large LED display (Mfgr#15770) * Multi layered high density foam provides optimal pressure redistribution * The ultra soft heel section is uniquely designed to provide extremely low skin interface pressure * The mattress cover is a 2 way stretch water resistant vapor permeable nylon * The cover provides a low moisture transmission rate (MVT) which keeps the patient cool and dry * Meets fire code 1633 * 7 Year Limited Warranty * Top layer of foam is high resilient and die cut which provides comfort and proper pressure redistribution