Rather than sitting on the ground to rest. Which might be the most basic resting place. Introduce 'Furniture useability'.
Examples:
Bench, Chair, Bed.
In that, you can sit on the bench or Chair and even the bed. Or lay down on the bed.
Possible affects:
Bench, raises the speed of endurance recovery. x1.2. (Benefits, perhaps more than one person may sit on the bench).
Chair, raises the speed of endurance recovery. x1.5. (Benefits, better recovery, however only one person).
Bed, raises the speed of endurance recovery x2. (May recover endurance or heal faster).