I love my two kitties, but they aren't allowed in the sewing room, which also doubles as a guest room if necessary. I usually keep the door open, though, and they'll curl up just outside the door, keeping an eye on me. If my attention wanders, one or both of them will try to sneak in, and sometimes they're successful! I just don't want cat hair all over everything, and don't want to take the chance of them eating something they shouldn't (they both have weird tastes) or getting hurt. Oddly enough, it's my husband who is allergic, and he was the one who wanted to have cats, and would gladly let them in our bedroom if I agreed to it. He takes a pill every day so he can love on the kitties.