Any reason for an NPC to be unconscious if magic healing is available

Being a DM here. Tring to set up a plot which involves an 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. Unconscious due to loss of HP can easily be fixed by CLW from level 1 cleric (as long as he is not killed immediately). Even the unconscious caused by loss of CON can be fixed by Restoration (which does not need a very high-level cleric), not to mention that CON damage only commonly exists when dealing with undead/poison (which is not the case for the fight I planned).

Is there a better reason for this high-rank NPC to stay unconscious or at least disabled for some time if most of the low-level healing spells are available indefinitely? This is mostly a plot device but I just want it to make sense within game mechanics instead of just saying “he is just so unconscious that magic healing is not helping”.