Hello everyone! (Sorry for posting this again, but it seems like my other post didn't actually... well, post). Lately I've been working on my own campaign setting using the Pathfinder rules, and noticed something; there seems to be absolutely no rules for lack of sleep! There seem to be rules for like... forced marching and the like, but those don't translate over well to lack of sleep (For instance, I don't want lack of sleep being fixable by a simple cure light wounds spell).

So I looked around on forums for a proper answer, and it seems there indeed are no official rules for lack of sleep. Though there is a general consensus on the issue of lacking sleep. It seems that all people, no matter how physically fit, will succumb to lack of sleep at some point. (The example given was army recruits still having sleep deprivation and withdrawal, including hallucinations). The other consensus seemed to be that people will take more hits to the mental faculties before any severe physical damage is sustained. Many also said that people will generally pass out before their bodies will let them die, but can eventually fall into something of a mini-coma to repair the lack of sleep.

People's ideas on how the rules should work also seem to follow a pattern: Many feel that there should be some form of constitution check, with a base DC of 10 that increases with time (with checks being made either daily, or hourly). Others feel that there should be a bonus for having a high constitution score. Many of these ideas included a fatigue penalty as well as an eventual exhaustion penalty.

In the end, I noticed a few ideas I liked, and kind of fused them to come up with something like this:

For every 4 hours of sleep missed, the character gains a -2 penalty to both wisdom and intelligence. When this penalty becomes -4, the character also becomes fatigued. When this penalty becomes -6, the character also becomes exhausted. These penalties can be removed at a rate of 2 per 4 consecutive hours above 4 that are slept (For example, 8 hours of sleep removes 2 points of the penalty, whereas 12 removes 4 points). Once either wisdom or intelligence become 0 due to these penalties, the character passes out and may not be woken up until they have received enough rest to lower the current penalty to at least a -2.

The only real things that come to mind with this, however are things like... how do these rules effect elves? Should the feat Endurance come into play with this? Should I try and include constitution at all? Should the penalties be able to be removed with something along the lines of restoration, or should I make them unable to be removed with a spell, to keep even higher level players aware of their levels of sleep?
Thank you all for your time and attention!