Ati: I've been thinking about the nap timing. The body experiences a circadian drop in body temperature about every twelve hours (which is a large part of what makes you sleepy at night and, to a lesser degree, after lunch). For a typical person, the lowest body temperatures are at 2am and 2pm, so ideally a typical person's core sleep and nap should be centered around those times. That said, those times could be shifted if the whole circadian rhythm were shifted--i.e. you could center your core sleep and nap around 5am and 5pm and your body should adjust. If one of the two were off by a few hours from the ideal time, I suspect the body could adjust almost as well. That's my theory, at least; the proof is whether and how each of these biphasic experiments work out.
I hope those who have posted about polyphasic sleep haven't become discouraged at this thread's turn into biphasic sleep; I'm still just as interested in seeing what methods work best for adapting to polyphasic, and I think the other readers and posters on this thread feel the same way.
Last edited by David Hausladen; 11-21-2006 at 02:57 AM.