Agreed on all counts about sleep, and I'd buy Sleep for Dummies too!
King Rat: to some extent I think it adds to it that he's reworking existing myths. I'm not sure I'd have enjoyed that book nearly as much if it had been set in a fictitious pseudo-London and had made its bad guy up completely, because I wouldn't have had that "wait a minute, it's not going to turn out to be ... no, it can't be, he wouldn't dare" sort of speculation in the run-up to the major revelation. Not that PSS didn't work very well at making up its own mythology too - either approach can be done well or badly, but I'm unconvinced that I prefer one over the other in general.
King Rat: to some extent I think it adds to it that he's reworking existing myths. I'm not sure I'd have enjoyed that book nearly as much if it had been set in a fictitious pseudo-London and had made its bad guy up completely, because I wouldn't have had that "wait a minute, it's not going to turn out to be ... no, it can't be, he wouldn't dare" sort of speculation in the run-up to the major revelation. Not that PSS didn't work very well at making up its own mythology too - either approach can be done well or badly, but I'm unconvinced that I prefer one over the other in general.