I had a decent nap, but I realized that I need to change schedule for few hours later, as I can't nap everyday the time I planned.
This means some further difficulty, but I don't think it will be that hard.
It's around the time I should be getting to sleep if I were going with my original schedule, but as I'm not I still have a few hours to to stay awake.
These are my sleeping times now:
The waking-time after the core period is a bit longed but I doubt that will be a problem. I'm beginning to get tired just on schedule right now, unfortunately I still have four hours to go. But this is still nothing compared to how I felt at times during spring.