CubicsRube
Hero
Adventures in Middle Earth.
The rule there is that you can only rest in a place that is designated as a sanctuary. To get places as a sanctuary, especially with some of the more "exclusive" places (read: dearven and elvish settlements) you usually either need to complete some kind of quest or gain audience with important figures, for which there are rules for.
The GM can also place discretionary sanctuaries, such as maybe the adventurers have had a rough time battling orcs in the mirkwood and they stumble upon an enchanted grove which allows them an uninterrupted long rest.
