[Kaderin Triste]

It's funny because once I'm deep asleep, the cats can't wake me up (seriously, one time my air freshener device fell off the bedroom wall and popped open and the air spray can and batteries popped out, but I didn't hear a thing). But until then, any little noise, especially if it's unfamiliar or I recognize it as bad (sound of puking cat, cat chewing on a plastic bag, etc) can jolt me wide awake.
Usually they settle down for a little bit when I'm getting ready for bed.