The fact that I doubled that yellow cotton in the first place is telling. I knew the cloth was thin and not up to the wear and tear of bedware. I let the color grab me. Now I'm paying for that mistake.
There are a half dozen places on this fling where the yellow has just given up the ghost so I dug in the closet and came up with a handful of sturdy old cotton prints. I only saved my favorites.
Because the front and back aren't stitched together, I had to open a side seam to inset the repairs. A few of those seams needed repairing too.
I had a moment or two of thinking "I should hand quilt the front and back together."
Madness.