Yaarel
🇮🇱 🇺🇦 He-Mage
I dont count narrative "milestones", but I do count the number of standard encounters to reach the next level. (For most levels about 16 encounters to level, give or take, depending on the narrative and the mood of the players. The leveling only happens between sessions.Are Milestones worth bringing back from 4e? Every 2 encounters you can get a power back. Maybe separate powers from healing. If a fighter knows he gets 2nd wind back every 2 fights, then he uses it and does not need the rest mechanic to get powers back. Maybe a milestone is a 5 minute break where you get a power back and/or can spend 1 HD.
In my campaign, all rests are short rests, except that twice per level, a player can instead choose to gain the benefit of a long rest from it. So far it is working well.
Only the narrative matters for when a combat happens. A standard encounter is often enough a noncombat encounter, such as a social challenge or puzzle, or a nonlethal encounter where foes flee or surrender. Rests happen narratively whenever a rest makes sense.
It is possible to modify this further, such as allowing any rest to be as brief as, say, 15 minutes. Or that the deep rest is only possible if in a nonstressful environment.