Note to self: don't knit when you're sleepy. You will add stitches. Somehow. No matter how simple the row you're doing is, you will add stitches. Then, after your nap you will have to pull out at least a row and count, and re-count, and count again as you put stitches back on your needles. Then, if you're not completely awake, you'll add stitches. Again.
The lesson here: be awake when you knit.