I worked a remote job with flexible hours.

Sometimes I would sleep during the afternoon, since I knew if I passed up the chance to sleep, I wouldn't get another any time soon. Then I'd work overnight after waking up.

The problem for me was never the schedule, but the fact I never had any energy to work, no matter at what time or how much sleep I had gotten.

I feel like if I worked 4 hour days I'd be much more productive and less anxious about my performance. I no longer suffer from sleeping disorders after years of treatment.