Mini backstory concept I made up if you're interested >

This character is a guardian angel of sorts, she hops through dreams to check that everything's in order and protects others from nightmares.

Only con is that because of this job she gets very little sleep herself and is moody and anxious because of it. She tends to be oblivious of her surroundings because of how much time she spends in the dream world and is extremely clumsy.

(Lack of sleep also causes hallucinations and she usually spends her time alone so that no one has to deal with her during them.)