Blind hem stitch and SMALL stitches. Usually about 1/4" is what I use. If you are planning to show it, the stitches need to be pretty much invisible and close enough together so that you can't insert a pinkie fingernail in the gap between the stitches. I do mine while watching tv and it usually takes anywhere from a couple of hours (for a baby quilt) to several evenings for a king size.