Ambien is not a benzo. The bizarre behaviour it causes seems to be related to sleepwalking, which is not a common side effect of benzodiazepines.
I met someone who was on a clinical trial for Ambien. He'd pass out almost immediately, but first he'd see crazy wild hallucinations. But only for like 15 seconds to a minute.
When it was finally released on the market, the dosage was a fraction of what he had take in his clinical trial.
I think you have to feel really crazy adventurous or desperate for money, to become a guinea pig for new drugs, that mess with your brain ...