C.G.
S., We have four girls, and a 3 bedroom house, so if you do the math, they all share rooms! They have since #2 came home from the hospital, and it's never been an issue. The first night was rough, but after that it was just accepted and never argued. If the baby is sleeping through the night, it really shouldn't be a problem at all. I like what Monika said about havign the older brother 'help' put the baby to bed, that might help him feel good and like a protector. Good luck!!
C.