Hidden zipper.
I have two insert cushions that you can choose from. Both inserts are poly filled.
One is puffier but covered in a synthetic.
One is a bit flatter, but covered in a cotton or more likely a cotton poly blend. This one has a bit of incongruity in one spot (after trying to wash it). It could be fixed by opening it at the seam, straightening it out and re-sewing the seam.
tag: bedding bed sleeping bedroom mattress plushy blanket pillow case sofa cushion cover sheet sheets throw curtain curtains