Hi. So I have a little girl who is just over 2.5 and due a little boy in August. The newborn will be in with us for at least the first 6 months but at some stage has to share a room on the smaller side of medium with his sister. My little girl has always slept well and us quite a deep sleeper. When did people move siblings into same room? Sooner or later. My LG is in a toddler bed. Thanks