Same, as the father of three children, I believe a lot of it has to do with sleep pattern conditioning. You are literally training minds to sleep on a rigid schedule to keep your own sanity. That implies sticking to rigid timing as much as possible and creating the optimal environment for success. E.g., correct lighting, air movement, sound (I highly recommend “Hey Siri, play Pure Meditation playlist”) at a low volume, and if you live in an otherwise particularly hectic environment, appropriately dosed and timed melatonin supplements. You reap the rewards of your own hard training work, or suffer the consequences of the lack thereof.

Way too much attribution to what you did vs chance outcomes.

Detailed it here: https://news.ycombinator.com/item?id=47988357