Narcolepsy (3.5e Flaw)
From D&D Wiki
Summary: Whenever you need to fight, you fall asleep.
Effect: Whenever you enter a battle, you must make a Will Save (DC of 15) to avoid falling asleep. If you fail you fall asleep, and stay asleep for 1d3 rounds or until disturbed. For every round you are awake in battle, you must succeed on another Will Save to keep from falling asleep. All sleep spells succeed against you, even if you are normally immune to them.
Benefit: Bonus Feat