We had a spare feather pillow, so I put a pillowcase on it and put it on the floor to see if the ferrets liked it as a bed.
As you can see, it is “ferret-approved”.
They also love the blue blanket in the picture. One of their favorite games is to play “capture the blankie,” in which we have one or more of the ferrets on the bed and we wave the blanket over them. So very exciting. >.>