I have 4 children, and my youngest two we would like to share a room. The elder of the two is 16mnths, our youngest is 4 months and she is currently sleeping in our bedroom. Any tips to ease the transition? I’m worried they will wake each other...our 16mnth old sleeps well but would wake if anyone went into her room. She goes to bed at 6.30pm. Our youngest still wakes occasionally once in the night. She is usually in bed by 7.30pm. Should they be put to bed at the same time? Cots near each other or on opposite sides of the room? Help!