General anesthesia really does knock you out, so you were very probably out like a light for the removal of your wisdom teeth. But when people talk about a lighter kind of anesthesia called "twilight sedation" or "conscious sedation", they actually do mean "we'll make you a little woozy, but keep you awake -- and also inhibit memory formation so you'll feel like you slept through it." The lack of disclosure to patients of exactly what this means -- "yes, you'll be awake, but you won't remember" -- gives me bad feelings about medical ethics.