Heheh, I did the first 30 hours of my run without taking a Long Rest at all! Beat all missions up to the underdark just using food to heal my team... lol. By the end I was kind of running on fumes, but for sure I would agree the Long Rest mechanic and the interaction with food needs some more thought.
Proposed Solution:
Perhaps introduce exhaustion after a period of time with no Long Rest? Of course consuming the Coffee item should push the exhaustion time off a bit.
