In at least one embodiment, the present disclosure provides a vehicle seat assembly comprising a cushion having an “A” surface and a “B” surface, a central portion, and two bolster areas, with each bolster area being adjacent the central portion, with the cushion having a plurality of intrusions extending from the “A” surface towards the “B” surface to form a hardness gradient between at least one of the bolster areas and the central portion of between 5% to 25%, the plurality of intrusions comprising a plurality of pairs of patterns, each pair of patterns comprising a first pattern spaced apart and opposingly and inversely facing a second pattern.