Single seam cube shaped restraint cushion

A restraint cushion is comprised of first and second fabric panels. Each of the two fabric panels is folded and interleaved with the other to form the restraint cushion. A single continuous seam interconnects the mating edges of the two panels. The restraint cushion has a generally cubic shape defined by top, bottom, forward, rearward, left, and right side. Each of the two fabric panels is a generally elongate continuous strip folded to a U-shape and interleaved with the other to form the cubic shape of the restraint cushion. The restraint cushion minimizes the number of panels used in forming the restraint cushion and minimizes the number of seams sewn to interconnect the panels so that the assembly costs of the restraint cushion are reduced.