Have you ever tried light therapy? It's commonly used in more northern areas to compensate for the seasonal affective disorder. But it almost sounds like your bio-rhythms are all confused.

I got an LED light box from Costco... I think it is from the Apollo health company. I sit in front of it every morning at 9 a.m. I sleep better at night. I wake every morning between 7:30 and 8 a.m.... like clockwork.

I do have to add that I take Temazepam for insomnia (I take it to keep me asleep for at least 4 hours, because otherwise I never go through an entire sleep cycle). But the light therapy really does work for me, and it seems to help me feel sleepy at the right time.