I would combine the Safety and Resources options and add restrictions as to where and when you can set up your camp.

* Long AND Short should require resources - food, maybe some potions, etc
* Long rests should be allowed only in relatively safe areas. Say, not in caves, dungeons and behind enemy lines, no enemies in a certain radius or/and you should clean X enemy groups to be able to set camp in the area.
* In some cases - depending on your location and randomness factor - night attacks on your camp should occur.

Those factors should be quite limiting, especially if requirements for resources will be hefty and random attacks will be deadly...

Last edited by ascet; 13/10/20 09:04 PM.