I'd love to have some game play restrictions and punishments, but since I'm a PS3 player I have to apply them myself.
So I do sleep every day, I also eat twice a day and if I'm a drunk I'll drink everything in the Inn.
You can place these restrictions on your self without the need for a mod, so I don't think forcing them onto the community would be advisable, makes the game restrictive.
No one is asking for a mandatory eat/sleep function. We are talking about an optional feature. I too am on PS3 and follow self imposed restrictions but sometimes I forget. It would be cool to be going along and then notice I had reduced stamina/health and then realize that it had been two days since I had eaten or slept. That sort of thing would add tremendously to immersion.
I understand that PS3 players cannot reasonably expect full on mods to come to consoles, but since that is not going to happen, Bethesda should really consider the console market more when they are designing these games and incorporate some basic features (immersive HUD, realistic sleep/eat, etc.) into an options menu. If they don't, some day someone is going to come along and build a better mousetrap because Skyrim's 10 million in unit sales, the majority of which are console sales, is not going unnoticed . . .
I'd happily pay a little extra for these types of optional features. Heck I'd pay double the price of the game just to get a darned immersive HUD on PS3.