Money and fame can't buy a good night's sleep. According to the Associated Press, a registered nurse has said she repeatedly denied Michael Jackson's demands for the intravenous drug Diprivan. Diprivan is used in operating rooms to knock a patient out, has been implicated in drug abuse, and has a narrow margin of error in dosing; a hair more than the medically recommended amount can stop a person's breathing. The nurse, Cherilyn Lee, said that Jackson was clearly not looking to get high, just to sleep for more than three hours in a row. Lee also recounted a harrowing call from one of Jackson's staff the Sunday before his death.