SoundAsleep’s Dream Series air mattress comes in twin, twin XL, queen, and king sizes. The mattress uses ComfortCoil Technology to reinforce the shape and maintain firmness throughout your sleep. The king-size—which measures in at 82 x 70 x 18-inches—uses 48 of these internal tubes to help maintain an even and flat mattress while you sleep. It’s got a textured bottom to prevent sliding during the night and a quick, quiet built-in air pump that takes about four minutes. The pump can also deflate the bed, making it easy to fold up and store in the included nylon travel bag.