Alternating pressure cycles of 10, 15, 20 & 25 minutes. 10” Cell-on-cell mattress prevents bottoming out. Audio/visual low pressure alarms. Static mode. Seat inflate increases air flow by 20% to middle bladders to prevent bottoming out. Pillow top. Nylon top cover is fluid resistant, anti-microbial/anti-bacterial & quilted. Lock out key completely locks control panel including power switch. CPR pull tab. Warranty: 2Yr. Non-Prorated. #80080-54RR-Complete Sys. w/Perimeter #80081-Pump Only Latex Free UNSPSC#42191810 System Includes Pump