This couch is 81” x 46”. The back cushions are removable so it can work as an extra bed perfectly. When using as couch the back pieces are movable, so you can arrange it in different shapes and positions.
I actually made this couch a long time ago. The materials are high quality, and inside there’s a lot of goose down. But the exterior has been all scratched up by my cats. It’s still very useful, but a little scratched up.