Did you ever try? I can't tell you why but me and many other people seem to have a biological clock that is out of sync with our societies expections.

For whatever reason I simply am more energetic and happy if I sleep until noon. Even if that means sleeping 12 hours, instead of 8 or so.

I did try living by my own biological clock and it was a complete disaster. Ruined my life for several years. My natural clock is non-24, but not by much, no more than 25 hours. So if left to my own devices I naturally drift "West" every single day. The only way I can cope is to take strict control of my wake up times and force myself into a 24 hour cycle.

The phase is irrelevant to me. So if I'm going to take control I get up earlier because I find that is more productive for me. I hate every single morning of my life, but if I let my clock do what it wants I hate my entire life.

That sucks but could also be true for me. My best performance is when I sleep when I feel to and wake up when I want to. Which works pretty well once you break all the social norms.