This free-standing Murphy Bed unit provides seating, room division, and last but not least, an extra bed! The seat of the sofa lifts up to reveal storage for cushions and bedding, while the bed swings down on a hinge without displacing items on display.
Here's another King-size loft bed. Looks like they use this room as an everything room, for a studio apt. perhaps. I see bed, desk (under bed), and sofa. This could also be just the bedroom if you don't have room for an office elsewhere chez vous.