I did it too for a few months. Felt great just doesn't work with society at all. 3h+ blocks are useful, especially when you need to get somewhere in a bigger city. And missing a nap is like missing a night of sleep, except it's not that easy to catch up without screwing your schedule. I did not have problem not being able to focus on something for 3h (btw AFAIR it was 2.5h for me? with 24 mins sleep). Nap felt like a pause, I could continue coding as if I went to the bathroom. Very much unlike me needing 1h in the morning to establish where exactly up and down are.
For startups - forget it unless you are going alone with no funding. Meetings just don't work. Nap have to be at exact times. It just doesn't work with social norms we have.
> I did not have problem not being able to focus on something for 3h (btw AFAIR it was 2.5h for me? with 24 mins sleep).
I didn't have problems focusing for 3 hours. But when I was amped about what I was working on, it was frustrating to have to pause for a nap.
I think I originally scheduled 30 minutes for each nap, but I found myself waking up right before my alarm would go off, and it got easier to fall asleep, so I ended up with 20 minutes scheduled, 15 minutes of sleep.
For startups - forget it unless you are going alone with no funding. Meetings just don't work. Nap have to be at exact times. It just doesn't work with social norms we have.
Also, switching is hell. It's a torture.