upper region of the rear panel 12 a the attachment flap is hinged along its bottom edge by a u201c living hinge u201d in rear panel 12 a to provide flexure required over the reclining range plate 30 forms the base element of a slidable assembly 30 36 which includes a pair of side plates 34 attached to rear plate 36 and a rear plate 36 attached to side plates 34 forming a rectangular cross section that is dimensioned to fit closely around the two columns 18 with only sufficient horizontal clearance to allow the slidable assembly 30 36 to be shifted vertically relative to columns 18 as required to enable inclination adjustment when secured to slidable assembly 30 36 in the normal mode columns 18 supported at bottom by attachment to tailpiece 20 provide the main rear support of the lounge particularly when reclined side plates 34 are each fitted with a pin 34 a extending outwardly and engaging the lower ends of a pair of rubber stretch members 38 whose upper ends engage pins 18 b extending outwardly from the upper region of columns 18 stretch members 38 are dimensioned to be only slightly tensioned when the slidable assembly 30 36 is located at the upper end of its travel range as shown in the upright condition the span of stretch members 38 and the tension increase as the slidable assembly 30 36 moves downwardly on columns 18.