Interesting. I have a similar problem that I haven't had any obligations to follow the "normal people schedule" ever since I graduated the university (and even then, I got like 4 hours of sleep and slept on the subway on my way there and felt like a zombie for a few hours in the morning anyway). I'm constantly out of sync with the rest of the society and this sometimes gets rather frustrating, but I can't seem to do much about it. I can try to strong-arm myself into it but that only works for so long, my schedule still slips eventually. The longest I was able to maintain a "normal person schedule" was around 2 months. Not sure at this point whether this is a blessing or a curse.

So, I might actually try this.