I'm not sure 0900 means what you think it means...
6p to 9a: Commute home, read, work on fiction, spend time with wife
9a to 5a: Sleep negative 4 hours
And, assuming you mean 9p, I personally need way more than 3 hours from the exit of the workplace to relax and sleep, esp with trying to have a family dinner and get kids bathed and to bed. Even single I'd need more wind-down time, and before kids I'd need more togetherness time with my partner.
6p to 9a: Commute home, read, work on fiction, spend time with wife
9a to 5a: Sleep negative 4 hours
And, assuming you mean 9p, I personally need way more than 3 hours from the exit of the workplace to relax and sleep, esp with trying to have a family dinner and get kids bathed and to bed. Even single I'd need more wind-down time, and before kids I'd need more togetherness time with my partner.