Being a DM here. Trying to set up a plot that involves a high-rank NPC being unconscious after a big fight so that he missed some important event (and only just awoke before PC arrives).
However, it is Pathfinder where magic healing is available. Unconsciousness due to loss of HP can easily be fixed by CLW from a level 1 cleric (as long as he is not killed immediately). Even the unconsciousness caused by loss of CON can be fixed by Restoration (which does not need a very high-level cleric either), not to mention that CON damage only commonly exists when dealing with undead/poison (which is not the case for the fight I planned).
What other effects can cause unconsciousness that cannot be easily fixed by magical healing?