I suppose that's where the issue hangs: does a house need to have a 'bedroom' at all? Where does it say that a 'sleeping loft' is a 'bedroom?' As the author of "The Small House Book" is constantly reminding us, his lofts are too low to be considered as habitable rooms - but that doesn't seem to preclude their use for sleeping areas.
Similar semantics are at play with the ladder to the loft; since it's not a 'stairway,' it need not meet stairway requirements.
I think he's found a loophole.
