Supra Alternating Pressure Mattress Use the Supra DPS Low-Air-Loss Mattress with alternating pressure as a therapy mattress to help prevent pressure ulcers. Medline's state-of-the-art Supra DPS mattress is an affordable, virtually maintenance-free choice. It features a digital pump and advanced technology. This innovative specialty air support surface features Alternating pressure/low air loss/static float/auto firm/seat inflation. Choice of four alternating pressure cycle times. Upgraded low-friction, anti-shear stretch cover. Cell-on-cell mattress design prevents bottoming out . Stays inflated during power outages. Quick connector allows for easy setup and keeps mattress inflated during transport 400lb. Weight Capacity Supra DPS Powered Low Air Loss Mattress. Supra Low Air Loss Alternating Pressure Mattress System, With A Digitalpump And, An Air Cell Base. Similar To The Traditional Supra Mattressbut This Uses An Air Cell Base Instead Of A Foam Base. Low Air Loss and Alternating Pressure Is Combined. MPN MDT24SUPRADPS This item ships from a separate warehouse and may require extra time for delivery.