I was able to find a job that was 9am to 4:30am, with an hour for lunch. That, and being able to read on my train commute, went a long way towards reducing burn out.
Then, I negotiated a 4 day work week, along with a 20% pay cut. Loved having a 3 day weekend EVERY WEEK!
[Edit] I meant to say 9am to 4:30pm.