Unconscious
From Titan's Teeth
Unconscious creatures are knocked out and helpless. Unconsciousness can result from having negative hit points, or from nonlethal damage in excess of current hit points.
An unconscious character have a 10% chance of waking up each hour. An untended character who fails to wake up takes 1 hp of damage with each failed check.
An unconscious creature cannot make Reflex saving throws and gets a -10 penalty to Will saving throws, but can make Fortitude saving throws without penalty.