1. First, start out by cutting the front and back of the pillow out using both the front and back of the sweater. Cut the smaller side for the pillow (the front in this case) at 14×14 and then cut the back piece at 14×18. In both, the cases kept the edge of the sweater intact as it meant you didn’t have to finish those ends. Depending on how puffy your pillow is, you may need to trim the sides down from this point. Use the scissors to make the job simpler.
2. Then pin the two pieces together inside out with the “good” sides facing each other, lining up the bottom non-stitched sides even with each other. Now pin the three un-stitched sides together and then sew them with about a 1/2 inch seam allowance using a zig-zag stitch.
3. Then turn the sweater “pocket” right side out and insert your pillow. The sweater had a fairly open weave, so now wrap it in the same color fabric as the sweater so that the white pillow doesn’t show through.
4. Then fold over the longer piece from the back over the top of your pillow and close it while sewing the buttons.