A valve for an inflatable device includes a pocket configured to be located in a cavity of the inflatable device. The pocket includes an entrance opening to receive air from an air source and an exit opening to deliver air to the cavity. The exit opening is spaced apart from the entrance opening, such that airflow passes through the valve by flowing from the entrance opening, through the pocket, and out through the exit opening to enter the cavity. The pocket may include a second exit opening spaced from the entrance opening and the exit opening, and may include a first branch and a second branch extending away from each other, and wherein the exit opening is located on the first branch and the second exit opening is located on the second branch.