I’ll give you instructions on how to fit this play mat project to any foam size.
PUL fabric (the size of your foam + SA*2)
Polar Fleece fabric (the size of your foam + SA*2)
Number 3 zipper by the yard and zipper pull (required amount is calculated in post)
About ½ yard of 44” wide quilting cotton
Sewing clips or pins
Optional – few sheets of paper and paper glue