Using principles from MMM as well as the 4HWW, I have rearranged my work so that I can work roughly from 8AM to 1 PM, mostly from home. In the afternoon, I nap, exercise, do other work if I feel like it, and do basic life management things. My job is good work that I believe contributes to a meaningful cause. It's not a total early retirement, but in many ways reflects a large degree of freedom and I am happy with this arrangement, especially as my work allows me great leeway to do things I find meaning in.
That being said, I feel guilty, as if I should be busier. When I rest, I feel lazy, even though I recognize this means I am recharging batteries to make a push later if need be, and also serves as time to incubate bigger ideas. I worry others will be resentful in the future if this arrangement is more publicized among coworkers, who work more and experience more work stress but achieve less. I previously have worked an average of 70 hours/week and don't want to do that forever - to a degree I have earned some of my stripes and have worked hard to achieve my current arrangement. No one has called me out on working less, but it remains in the back of my head that this could be a future problem.
I recognize that this guilt is pretty irrational - my productivity is strong. I figure many of you have been in a similar position and I wanted to see what your perspectives are on this scenario. Thanks!