Calmness grants haste equal equal to 3*sqrt(Calmness). Haste causes more 'game seconds' to pass in one second, so 100% haste would make hunger last twice as long.
The base technically gives you infinite food and rest, but Spring Water seems to be the real bottleneck at the moment.
Still, someone managed to score over 600k points. Even +9999 Vitality from a lucky mandrake wouldn't get you close to that amount. If it's legit then there's probably some insane strat going on that I don't even know about.
