Visual cues for sleep deprivation idea is pretty cool, some people can get hallucination if they stay up too long. My friend had some crazy hallucinations when he was in army, saw shadow people in the woods. But as for game itself, it's easier to keep them as sounds (whisper noises maybe?) and maybe later expand from that. I'm so waiting for creation kit, so we could get basic needs mod out. I think it really fits for this game, for me it's not about playing Sims, more like resource management of scarce items, it adds more challenge and tactics. System shock 2 game did it right with scarce items. Good luck with your mod. :thumbsup: