A small two-seater at the end of a bed is a great solution for a variety room configurations. Not only can they increase a bedroom's functionality, but they add a little bit of that hotel luxury feel.
I like the idea of a small sofa at the foot of the bed. Often a good fit for narrow studio apartments, a love seat can be used to divide up a single room into two living areas. If you have a bedroom big enough to accommodate the extra seating, it can also make for a great footboard or simply a nice place to sit down and tie your shoes.