Interesting! I read a big chunk of that blog just now. Not a “success story” per say… he went back to monophasic, and he lists a lot of cons concerning it.
Dejan told me that humans, as a species, used to be polyphasic. Which is also interesting…
I think I am convinced to stick to the way the majority of humans are evolving right now… (monophasic). At least concerning sleep…