736 near its ends the primary role of the deflection limiters is to engage the spring member section 740 when the tension force in the spring member causes the spring member section 736 to reach a threshold deflection the deflection limiters 750 are connected to the spring member consistent with the approach with respect to the spring member 130 supra given the above description a layered spring member may include more than two concentric spring member sections for example a spring member 930 with three concentric spring member sections is shown viewed longitudinally from the middle outward in fig9 yet another version of the spring member used in conjunction with the present inventive trampoline is shown in fig1 the spring member section 1030 has its lowest spring constant in its middle spring member section 1040 all of the spring wires in each spring member section have the same wire diameter and wire shape and the spring member is a single long wire albeit wound into several distinct sections additionally the outside diameter of the middle spring member section 1040 continually tapers until it reaches the beginning of adjacent spring member sections 1037 and 1039 at the beginning of section 1037 at the juncture with section 1040 the outside.