I usually shut my door, but the cool air conditioning from the main room doesn't get to my room, so I have to leave it open most of the time. My kitten likes to sleep and hang out on top of the viv, but Sol finds it really annoying. I have had to kick her out of my room so many times, I think she gets the hint. I might have to move to the water spraying method if she starts at it again. My other cats just stare at him from a distance for a few minutes then leave, so I don't have to worry about them too much.