So if you get up at 6 am, you can only drink at 7 am. So let's say that you drink six cups a day - one every hour. That would take you to 1 am. Then you can't drink coffee for 10 hours before you sleep. That would mean I can't sleep until 11 pm.

Tough hours for me.

I'll stick to one cup in the morning after I wake up (rarely another one during the day), and 1 cup of tea.