this is my current "sofa" by normal people size standards it probably doesn't qualify in the sofa-class...
but it fits a me sized human (5'nearly1") or two ginormous cats
photo by KP
the ginger-bastards have shredded the side of it and lining underneath it, I'm terribly happy it was a craigslist find.
In my Sparkle Dream Home (a world without shedding & shredding beasts) this might be my sofa

or possibly this