People on Ambien can get pretty nutty: they hallucinate dragons (see above), cook, eat, file their nails, have long coversations, even drive—and remember nothing later. Now—and way crazier—the drug is waking up people from nearly vegetative states following severe injuries.
Chances are, you know a heavy snorer. Hell, you might be one yourself. In which case, I'd recommend you spend the $2.99 on the Sleep Aid app, which could detect whether you suffer from a breathing problem.