Quilts live somewhere between a blanket and a comforter. At a basic level, a quilt is two layers of fabric sandwiched around a thin layer of insulation, then stitched through all over. That surface stitching is what makes a quilt, a quilt.But when made well, quilts are also a little magical, evoking comfort and cozy nostalgia, in a riot of colors or in quiet tones. We tested 21 quilts and found five marvelous designs that we love.