Until now I was a 12 a.m. - 8 a.m. sleeper but in time I observed I didn't have productivity. The most productivity for me goes when I work during the night (12 a.m. - 4 a.m. interval when all neighbors are asleep and I can concentrate and focus).
I then changed my sleep schedule from 4 a.m.-8 a.m.
I'd go to sleep at 4 a.m. until 8 a.m., wake up for some house chores (that are a must at that exact hour), then sleep again from 9 a.m. - 1 p.m. in the best case. However, many times the neighbors start to work and create noise in the morning (the 10 a.m. - 12 p.m. interval) and keep me awake. In these cases I only get 4 a.m. - 8 a.m. interval of good sleep. I can't say that this happens every morning, but if it happens 2-3 times a week my sleep patterns are affected.
I've also thought about the 10 p.m. - 4 a.m. sleep interval.
Another thing is that sometimes the neighbors start to make various noises during the night (for example, 12 a.m. - 1 a.m. interval). So if I'd get to sleep, say, at 10 p.m., my mind would stay in an waiting-state since it's not sure if the noises would wake me up or not - you know, the thought that someone might wake you up makes you think constantly about it.
So my question is how to best proceed about this? I have the most productivity during night when everyone's asleep. I'd do anything to know that my mind is in its best shape for the startup. However, with the above I feel many times that my mind is not connecting the dots, is unclear, tired, etc. - you know..
What is your schedule for work/sleep to get fully motivated and best productivity?