An adjustable bouncing frame for a child support device including a support frame coupled between a base portion and a child seat platform of the child support device. The support frame is configured to support the child seat platform a distance above the base portion which rests on a support surface. The adjustable bouncing frame generally includes at least one support member that is slidingly coupled to the child support device at a first end. Lateral movement of the first end of the support member can adjust the height of the child seat platform relative to the base. The frame can also include a resilient member that allows for reciprocal lateral motion of the first end of the support member which results in an up-and-down bouncing motion of the child seat platform.