Isn't Ambien what that Kennedy dude (Patrick Kennedy) used when he slept walked, drove somewhere, crashed into a tree and blamed it on Ambien? He was a US Congressman at the time. I believe it is the *Ambien* defense if you do something really stupid in the middle of the night.
I like Lunesta. Lets me sleep for 5-7 hours when I need to. Not too groggy the next morning.
The "Ambien defense" is starting to rear its ugly head, thanks, in part, to Rep. Patrick Kennedy's nighttime excursion around Capitol Police barricades in Washington, DC. True to form, the Kennedy's dodged potential legal ramifications for their actions with clever lawyers and the novel notion that "the Ambien made him do it" as an excuse for getting behind the wheel of a 2,000 lb automobile and nearly mowing down a Capitol Police officer.
http://www.kaydaly.com/2006/08/ambien-new-twinkie-defense.htm