Coleman Twin Double-High Quickbed with Electric Pump Inflated size: 74" x 39" x 17" Inflated in less than 3 minutes with included 120V QuickPump Heavy-duty PVC with a soft suede top for comfort Advanced Double Lock Valve locks in air two ways; Coleman Airtight System guarantees a leak-free inflatable. Wrap 'N' Roll system for hassle-free storage Location, temperature, and humidity will affect the firmness of the airbed. Airbeds will need to be occasionally re-inflated (topped off) to maintain desired firmness upon initial use and when used for more than a few days as material tends to relax over time.