I like the idea of your companions complaining about being tired to remind you to rest, ala BG 1&2. At present, I think the current rest system is better than what we had. Two short rests to replenish health, and a long rest for spell slots & abilities. I think this makes it necessary for us to not blow through all of our spells & abilities every single fight if we want to keep moving forward, rather than engage one set of enemies, long rest, engage the next set, long rest, etc etc.
