Triggered by seeing someone sleep on the couch??

Idk if this is insane but my roommate falls asleep on the couch pretty often and it always makes me feel very very upset, like if I go out to get water at night and I see her asleep on the couch, when I get back into my bed I will start crying. I get this way when I’m watching tv or a movie with someone and they fall asleep as well. Honestly any scenario where someone falls asleep anywhere but a bed if triggers me, I didn’t even put 2 and 2 together until pretty recently I think it’s because of memories of parent passing out from alcohol?? How do I move past this?