Abstract: A plurality of interconnected suspension members have reinforced upper and lower edges and extend around the outer periphery of a hollow inflatable support. The upper portions of the suspension members are connected by springs to the outer edge of an elastic trampoline mat. The lower portions of the suspension members are connected by a plurality of rigid connector members to spaced points on an annular retaining member having opposite ends adjacent one another. A turnbuckle is connected to the ends of the retaining member for adjusting the distance between the ends to control the tension of the suspension members. A sleeve of cushioning material surrounds each of the springs, and an annular cover overlies all of the sleeves.