an upper featherbed fabric layer and a lower featherbed fabric layer, wherein the upper fabric layer is longer than the lower fabric layer;

lines of stitching connecting the upper fabric layer to the lower fabric layer at spaced lateral lines along the length of the featherbed, the lines of stitching extending in a lateral dimension of the featherbed, wherein the ends of the upper layer are substantially coincident with the ends of the lower layer, and wherein the dimension of the upper layer is greater than the dimension of the lower layer between each line of stitching, thereby defining successive half-tubules with half-tubule volumes along the length of the featherbed; and

filling provided in the half-tubule volumes, such that the upper layer extends away from the lower layer in an arcuate configuration for each half-tubule, with the lower layer being flat for each half-tubule.