MEJU Rocket Planet Space Universe 100% Cotton Duvet Cover 43" X 59" + Pillowcase 13" X19" Bedding Set with Zipper Closure for Baby Toddler Boys Girls Crib Bed Decoration Gift (Rocket 2)

I saw the quick zip listing you were talking about and it was only $33? The percale option has different colors too that are different from the blue, pink, or hospital colors haha I wonder if just a crib sized zippered duvet cover like this or this would work? It would be easier if i had the dimensions of your mattress but I’d recommend looking for zippered couch cushion covers or like zippered covers for window seats of the dimensions you’re looking for? They make these stretchy couch cushion covers that may suit your needs, they don’t zip but they don’t look like they’d move much!