are utilized to adjust the positioning of the bed frame 14 to achieve a substantially 90 degree position to match the rotational movement of the bed frame 14 the spring support bracket 122 is pivotally attached to a pair of base mounts 142 which are in turn attached to a base mounting member 144 that is attached and extends between the lateral members of the bed support frame 66 the primary function of the base mounting member 144 is to ensure the proper location of the spring support bracket 122 relative to the bed support frame spring bar 128 as is best shown with reference to fig8 upon rotating the bed frame 10 to a vertical stored position the spring tension is substantially relieved particularly with respect to the second set of tensioning springs 132 both sets of springs have been removed from fig8 for purposes of clarity such lessening of tension in the second set of springs 132 enables the tension remaining in the first set of tensioning springs 126 to cause rotation of the spring support bracket 122 towards the bed support frame spring bar 128 returning to fig6 when the bed frame 10 is rotated from storage to the functional position the just discussed spring operation reverses to effectively provide proportional counterweight support the initial support is provided by the second set of tensioning springs.