When I had a full time job, my personal life rhythm was established by my schedule. I had a long commute to work, and had to leave home early to make it there by 9am. My bed time was at 11pm, mostly non-negotiable, as I was used to getting up really early, writing, having breakfast and going to work. Even on weekends, I rarely could sleep late, as my rhythm was set up.
Since I’ve been self-employed for a while, I’m able to make my own hours, and at first, I was able to keep up with the same rhythm. But during the spring, things started to change. I was teaching late evenings, and was getting home too late to make it to my 11pm bed time. That led me to not be able to wake up as early as I’d have liked either.