Twin Prestige Hunter Green Downy Airbed (Built-in DC Pump) The Perfect choice for the rugged outdoors. The flocked top gives a more luxurious sleeping surface, cleans easily, and is waterproof for camping use Pump plugs into 12 volt DC automobile cigarette lighter, or 12 volt DC accessory outlet. Perfect for car camping Quality tested 20.8 gauge waterproof flocked top and sides Conventional mattress size for more sleeping area and a better fit for sheets Folds compactly for storage and travel Location, temperature, and humidity will affect the airbeds firmness. Airbeds will need to be occasionally re-inflated (topped off) to maintain desired firmness when used for more than a few days as vinyl tends to relax over time Measurements will vary based on customers inflation. Airbeds are measured from the widest point including the beams (bulges) on the side and off the tallest point from the floor including built-in pillows if applicable