http://www.nexusmods.com/morrowind/mods/44399/?
This is an edited version of Destructor36's excellent needs mod "The Bare Necessities", version 1.1 which requires food, drink and sleep to avoid suffering serious attribute penalties.
Destructor has given me full permission to upload this edit.
So what's changed?
Hunger now drains Endurance and Intelligence. (Endurance in original)
Thirst now drains Agility and Willpower. (Strength in original)
Lack of sleep now drains Speed instead of Agility and Intelligence, and will begin to drain fatigue and magicka in gradual increments if you go more than a day without sleep.
Also all on screen satiation popups have been removed. You will have to manually check your status bars for satiety.
I wanted the mod to be more severe and more immersive, so made these edits.