"Being more outgoing or more aggressive than normal?"

Yeah, I BET. Until now, that “side effect” has been downplayed in the fair balance. I predict a copy change thanks to Tiger Woods Ambien sexcapades. Just scan a few forums and read the stories of the roofies-like effect the drug apparently has. They might want to offset the warning in the spot about dying from swallowing your tongue with a new product benefit. Although, in Woods’ case, Ambien’s version of Viagra + amnesia = half. Still, I’m guessing the number of new Ambien scripts skyrockets this week.