Good afternoon. We had a cocoon/nest custom-made for my son; as soon a…

Good afternoon. We had a cocoon/nest custom-made for my son; as soon as I found out about the second pregnancy I took it to the dry cleaner and packed it—basically prepared it for the second. But tonight (as ideas usually come only at night)) I got the idea to sew a new cover for it so it would have a different print. Do such covers exist? Has anyone ordered one? I just looked online and couldn’t find covers specifically for cocoons.