I have three cats and am mildly allergic to them. I tried the bedroom thing and it was no go. Mia insisted on grooming my eyebrows at 2 a.m., it not only woke me up, but gave me a rash. Rockstar discovered how to get into the box spring and wake us up by pulling springs - “Boing”.
When the third one arrived, he was taken into bed for bonding and protection from the others who did not like him, but they were clearly jealous so when he was able to fend for himself, out he went. He still drools anytime he gets a chance to stay in the room. It’s a happy place for him.