Abstract: An inflatable cushion for use by those engaged in various sports activities such as boating, hunting, fishing, canoeing or a spectator attending various sporting events. The inflatable cushion includes a generally circular outer covering or envelope having an openable and closable side edge portion provided with a closure structure with an inflatable annular tube being positioned into the outer cover through the openable edge portion to provide an effective cushion for a user. The outer cover is provided with a shoulder strap to facilitate the device being carried to a point of use and also useable to secure the cushion to a stadium seat, boat or canoe seat, tree stand or the like. The exterior of the outer cover is also provided with a pocket to receive a relatively thin, flexible heating unit to enhance the comfort of those using the cushion especially during cold weather.