Split time into 2hr blocks of which 1.5 is actually used for something. This allows for breaks, interruptions, time to refocus, etc.
The blocks are categorized as: sleep, eating, administration or maintenance (bills, chores, cleaning, etc.), productivity, and leisure. Lets see if it works.
My Ideal:
Day:
Up at 6 after 7.5 hours sleep.
1.5 productive time (work, charity, admin, learning, etc.)
Week
Year
Life