A restraint system includes a side air curtain, a sail panel, and a secondary cushion. The side air curtain is inflatable to an inflated position and has a top edge, a bottom edge, and a forward edge extending from the top edge to the bottom edge. The sail panel extends from the forward edge. The secondary cushion is inflatable to an inflated position and is elongated in a direction away from the bottom edge and the forward edge toward the top edge.