(General)
Harsh conditions or long exertions do not easily tire you.
Benefit
You gain a +4 bonus on the following checks and saves:
Swim checks made to resist nonlethal damage from exhaustion;
Constitution checks made to continue running;
Constitution checks made to avoid nonlethal damage from a forced march;
Constitution checks made to hold your breath;
Constitution checks made to avoid nonlethal damage from
Starvation or
Thirst; Fortitude saves made to avoid nonlethal damage from hot or cold environments; and Fortitude saves made to resist damage from
Suffocation. You may sleep in light or medium armor without becoming
Fatigued.
Normal
A character without this feat who sleeps in medium or heavier armor is
Fatigued the next day.