After removing the covers, cutting the sponge to the right size and washing it we glued all the pieces together with glue spray.
Then we used an old bed sheet to sew the first cover for the sponge. This will secure it from wearing it off on the thicker upholstery fabric. Velcro was an excellent idea to close the flat long pocket opening.
Now the main cover on the top with a long zipper on the side. Perfect!
A pillow on each side and matching curtains in each window.
Now she can relax with her friend on the queen style window ledge cushion.