I must move the babies bed

Stefan's crib is in the little walk through area to the bathroom upstairs. Needless to say, if someone needs to use the bathroom in the middle of the night, they are sure to wake him up. Ugh. They don't suffer too much for this offense as they can skip back to bed. It isn't that I haven't pointed out before that the baby sleeps there and they need to be quiet or go to the downstairs bathroom. So......where do I move it????? The one boy's bedroom might work but there is a 12 year old boy who sneaks and reads past his bedtime so he could wake up the baby. The other boys room is WAY too small and there is a 15 year old boy reading way to late in there. I know they do this now as I just came up to re-cover up the baby from earlier and discovered their lights on. Hmmmmmm.........where are the video cameras to survey their behavior. There is a winding staircase that prevents me from seeing their rooms unless I climb the stairs so who knows how long they stay up. I am all in favor of reading but sleep is important too. Then.......I never know exactly where to draw the line with making it their problem that they are sleepy in the morning. This hasn't exactly been typical family behavior either so what to do.......

Well, the baby is back to sleep so I better go back to sleep also.