The job of first sergeant, or “top sergeant” as it was once called, is perhaps one of the most rewarding positions for enlisted personnel in the Army. The first sergeant is the arbiter for all enlisted-soldier matters within the company. He or she is the senior noncommissioned officer of the company, with considerable influence over the unit’s culture.
Benjamin Franklin nailed it when he said, "Fatigue is the best pillow." True story, Benny. There's nothing like pushing your body so far past exhaustion that you'd willingly, even longingly, take a nap on a concrete slab.