These are diagrams of the various configurations of a unfolding cabinet unit that has all the "functional components of a larger apartment including a bed, a nightstand, a closet, a home office, a library, kitchen storage, and most of the lighting for the room."(quoted from "Normal Apartments, could not pinpoint the source though)
See photos at Normal Projects.
Apparently this was completed in 2007. Why isn't it in mass production?!
Here's some convertible furniture you can buy at Resource Furniture:
That is, if you can foot the price tag. I paid a visit to their Manhattan showroom recently and was completely mesmerized.