Biphasic sleep is what I role with after learning about it here on HN a few years ago. I really enjoy reading / learning late at night / early morning. Yet I ca

Biphasic sleep is what I role with after learning about it here on HN a few years ago. I really enjoy reading / learning late at night / early morning. Yet I can't sustain early morning exercise and other things like that after staying up til 1-2am every night. Going to sleep shortly after dinner and waking up around midnight for a few hours reading / coding / learning has really helped me get my shit together. In fact, come to think of it, biphasic sleep was what got me into early morning running. One morning I woke a bit late and worked a bit too long, so instead of only getting a couple more hours I decided to ride it out and go for a run at 5am. Probably a huge turning point in my life and I didn't really think much of it. I think this was the thing that really got me interested to try it: http://web.archive.org/web/20110629110723/http://www.historycooperative.org/journals/ahr/106.2/ah000343.html http://web.archive.org/web/20110629110723/http://www.history...