I found folding lounge things on Amazon and had considered them for a while. In part, to add a smaller but large footprint soft step up to the couch for Benson, but also to use in other ways, like myself lounging in the living room with the doggos.
Usually these guys greatly dislike things that change. But I just watched Benson climb up on this thing without me having to do anything. He almost, immediately, adopted it.
Note quite on the couch, yet!