Pet Therapy Therapeutic Reversible Dog Crate Mattress Fleece and Zipper, Small/20" x 12"

This is in no way a mattress. It is like a pillow case with a zipper. There is nothing inside except a thin piece(maybe 1/8 inch) of styrofoam, exactly the kind used in packaging. I honestly don't know if this item is a joke or if the "mattress" was removed from my package. Ridiculous!