At least one flexible sheet of material forms a casing configured to be folded into an accessory bag and unfolded into a diaper changing station. A frame assembly is at least partially disposed within the casing. A canopy is attached to the casing and an arm of the frame assembly, the arm and canopy being selectively movable between a collapsed position adjacent the base and an extended position away from the base to form an open-ended tent structure at a first end of the base. A padded diaper changing pad is disposed under the canopy. One or more pockets are formed in or attached to the base or the canopy.