People adjusting has been disproved in sleep studies. I don't have links at hand, but air force studies suggested that humans have the minimum brain recovery du

People adjusting has been disproved in sleep studies. I don't have links at hand, but air force studies suggested that humans have the minimum brain recovery duration is wired down fairly deeply in the brain. In other words: There's humans who could sleep for 20 minutes and they are refreshed and active, and there's people like me, who can nap for 30 minutes and I'm off worse afterwards, because my brain just got started processing things and it got interrupted in there. As far as I know, neither NASA nor the air force found a way around this. Beyond that, I'm not sure if I can take anything serious that argues with times. My body might have a biological clock somewhere, but melatonin or lack thereof (and thus sunlight, and lack thereof) should play a much bigger role than our arbitrary 'midnight'. After all, our body and brain is just a complex chemical reaction with external influences.