to the OP
i am just curious, what are you doing, when you want her to go to bed? I know right now i have roommates, and have problems when they are all awake doing things and i have to go to sleep, I just don't want to, I have to have music on, in order to drown out the fact that there are other people in the house moving about.
oh and I am 23, I still have to have a light on to sleep.