I've done it both ways - with and without. When I use batting, I normally use scraps of whatever I have that's very thin -- good parts of a worn out mattress pad, cotton, or thin poly. With a batting, you have more of a look of quilting than without. I don't think the 10 minute table runners used batting, but it could be used. Assuming this is the table runner I'm thinking of, there are no seams at the edges - the bottom piece is bigger than the top piece, so the seam is an inch or so from the edge, and then the edges are folded into a triangle and stitched down, sometimes with a button or decorative stitch. If you want batting, I'd cut it the width of the finished runner, with triangles at either end, and insert when you turn the tube. I would do edge stitching around the perimeter, and probably stitch in the ditch for the seam an inch in, and for the triangle ends.