Multi dog ideas

I have four small male dogs who usually are in the same room peacefully. But I go to bed and suddenly they’re complete jerks to each other. I can’t put them outside of the room overnight in our living situation. I have tried pheromone diffusers. I enjoy my cuddling time with them so it seems mean to crate all four to just stare at me lying alone in bed all night, when it’s the ideal time for long cuddles. Especially since they lie on that bed almost all day. I just come in and steal their bed? I don’t know. I just know I hate how hard it is for them to get along with each other with me in the bed.