Kids sharing a room

Emily
It broke my heart but we moved my baby into what's supposed to be her room because she's not sleeping at night with me in the room (sleeps 8+ hours if I sleep down on the couch). Tonight is the first night my husband's daughter (5) is sleeping here tonight (she stays with us on the weekends and we share custody during the week). Please give me some experience or kind words. The older one has already thrown three fits about sharing the the room (was fine till it was bedtime) and I haven't even put the baby in there yet.