When I had a regular job, I could do with about 6hrs of sleep, but eventually over time slept debt would accumulate, and I'd sleep one day (usually Saturdays) a

When I had a regular job, I could do with about 6hrs of sleep, but eventually over time slept debt would accumulate, and I'd sleep one day (usually Saturdays) about 10hrs to catch up. Now, that I work on my schedule (getting a startup off the ground), I regularly sleep 9hrs, sometimes 10. Time to time I have coding marathons (when I am doing something exiting), that might cut my sleep to only 5-6 hrs a day, but that usually lasts only about a week and my productivity drops. I noticed with 9hrs a day, building muscle is easier, I have less body inflammation, and no stress or anxiety. The quality of my code is substantially better as well. Bottom line: I thought 6hrs a day was enough, but I see that naturally my body wants about 9hrs of sleep, and the 'plentiness' of sleep affects my mood in good ways. This is probably some of the happiest times of my life, even though it is the middle of winter here in NYC.