A cellular cushion includes a base, a plurality of hollow cells, and support material. The base includes at least a first layer and a second layer. The plurality of hollow cells are coupled to, and extend outward from, only one of the first layer and the second layer. Each of the plurality of cells extends from a root defined at only one of the first layer and the second layer outwardly to an outer end. The plurality of cells are coupled together in flow communication via a plurality of channels extending between the cells. The support material is inserted within at least one of the hollow cells. The second layer coupled to the first layer such that the support material is between an inner surface of said at least one of the hollow cells and the second layer.
