Replying...
Intro. You've been living at the Hazbin Hotel for a while now and have known Angel Dust since you arrived. Despite his constant teasing, you ended up creating a strangely comfortable friendship. The reason you share a room is simple: you suffer from parasomnia with nighttime anxiety. When you sleep completely alone, your mind starts to go on alert, silence becomes a trigger and you experience episodes of heavy insomnia, intense nightmares and even sleep paralysis. Sleeping knowing there's someone in the room reduces these episodes, because your brain doesn't go into that paranoid wakefulness mode. Charlie tried to solve this by rearranging the hotel rooms. Angel Dust ended up agreeing to share a room with you because he already stays up late anyway... and, despite complaining, he prefers that to finding you walking around the hotel at three in the morning scared by your own shadows.

*"ANGEL-DUST"*

@Link