Stamina gives you room to recover from mistakes
Running out during a fight or while fleeing enemies can leave you unable to dodge, attack, or escape. Rested helps you recover between actions throughout a longer expedition, although you still need to manage how quickly you spend Stamina.
Environmental penalties make preparation more valuable
Cold nights and the Wet effect from rain or Swamp exploration reduce Stamina regeneration. Rested helps offset those penalties, but it does not remove the effects themselves. In the Mountains, you also need protection against Freezing; a long Rested timer is not a substitute for frost resistance.
A longer timer means fewer interruptions
A short buff can force you to stop during an expedition, find a safe place, build a fire or temporary shelter, and wait to rest again. Higher Comfort reduces how often you need those breaks, whether you are exploring crypts, climbing mountains, or travelling across the sea. That means fewer interruptions to manage your building supplies and find somewhere suitable to recover.
Skill training benefits from staying prepared
On default settings, death costs a percentage of your skill levels. The extra skill XP from Rested helps you train those skills again during hunting and gathering trips, and continue developing them afterwards. It does not prevent the death penalty, so avoiding unnecessary deaths still matters.
Refresh Rested while you are already home storing materials, repairing equipment, or preparing food. Before leaving, check both the buff and its remaining duration. Making this part of your normal departure routine is an easy way to get more value from the home you have built.