M.W.
Hm...well my babies slept in my room (in their own bed unless I was just soooo tired and fell asleep while they were nursing) until they were over a year old (say, 14 to 18 months ; by this time they were usually sleeping through the night. Would the baby's crib fit in your room until he is a little older? When he does start sleeping through the night, moving him into the older boys room could be an excuse for a wonderful little 'ceremony' for both kids!