All rooms have closets, twin beds, small chests of drawers, desks, and lamps.
These vary dramatically by room, and are built into the walls. Generally, they will be 2 deep, but the width varies. Typically 6, with a different outlet box on 3 of the 4 walls in the room. You cannot store your bed or desk. There is no shelving, however, there is plenty of space on the chest of drawers and desk to place your items.