My Circadian Rhythm has changed over the years. In my youth, and during most of my life, I worked. I went to bed at 11 pm and up at 5 am. If I had to nap after work an hour so be it. I tried not too.

These last few years, I have had a reversal of sleep hours. I go to bed 2, 3 or 4 am and sleep 8 to 9 hours. Then I get up so late in the noon hours, which I don't care for. I love the mornings, but I just go with the flow of what my body wants/needs.

I have tried to change it. If I go to bed at 1 am, I wake up wide awake a 5 am. I read a while and go back at 7, 8 or 9 am and lose the whole day sleeping. I think my internal sleep clock is broken, along with my internal thermostat.

The Autonomic Nervous system controls these, like your heartbeat and breathing, etc. You don't have control over these either.

Only problem I have is if I have a doctor appointment or a blood draw that is early. I have to get up early and stay in a fog until I get back home. I don't function well on 2 hours.

I don't take any sleep meds, never have, and went off Neurontin years ago. On the LDN I have no problem sleeping, just my normal wrong hours IMO.

Nothing bad has changed, at least I get enough hours. Maybe someday it will change back.