That said, I suspect he doesn't have a 1.5 hr commute like many do (and I used to have, at times). Working from home does indeed provide a tremendous advantage, particularly with those quiet early morning hours.
Way less traffic and that cuts my commute down by half. (1hour to 30 min)
And I found I actually like 2-3 hours of no distractions at the beginning of the day.
When I came in at 10am, it was 0-100 almost immediately because somebody always wanted something.
Took me a good month though to actually learn to go to sleep before 11pm. Originally whenever I slept before 11pm, even if I was dead tired, I would wake up at 2-3 am and not be able to sleep again.