Paul, I’m aware of his projects but I was personally stating that I don’t believe it’s a science. Sleep patterns are obviously very moldable, both psychiatric and military research have already proven that, so a variety of “organic clocks” can be marketed (technically) as legitimate but that doesn’t mean that particular “clock” is both healthy and yields optimal productivity. Some people who sleep for only 4 hours but accomplish 2 hours of delta sleep in that time can function perfectly well after they wake up but note that this is not considered to be valued outside of the medical and military professions…

I’m by no means a qualified expert (still just undergrad) but I just wanted to point out that when you are considering implementing a new approach to something so crucial to life as sleep, that you do a thorough background check on that approach and take your health into consideration more than productivity.