8520 does have the couch that makes into a bed, the bed (small) that comes down from the ceiling, and the twin bed (Murphy) that comes out from the wall. Picture in your head the type of ironing board that some people have that is tucked into a wall until you want to use it. You just fold it down. The room steward will fold down and prepare all the beds for you at night, usually while you are at dinner.
When that twin is pulled out of the wall, it does block the access to the verandah door, though.