Smart Air Beds Queen Raised Memory Foam Air Bed with Remote Control, Brown 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 when used for more than a few days as vinyl tends to relax over time. Measurements will vary based on 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. Sleeping surface raised 20 inches off the ground;Dimensions: 78x60x20; sleep dimensions: 75x58.Memory foam top adds warmth and comfort.Tethered handheld remote allows for adjusting the firmness of the bed Internal A/C pump gets the bed from bag to bed in less than 3 minutes Inflate everything 3 times before applying weight and make sure all valves are sealed.If not, air will escape from the valve