As of now, the girls will need to share a room. Deadline is roughly May-June when DD2 is 5-6 months and outgrows her bassinet thing. DD1 will be nearly 4 by then. I dread the thought of this... DD2 doesn’t sleep through the night (she’s 3 months) so between an anticipated sleep regression coming up at some point, middle of the night feeds... How do I make this work without everyone all waking up? When the time comes to sleep train, do I do DD2 in the crib in the room and have DD1 maybe sleep on an air mattress elsewhere or something for that time? Am I overthinking the room sharing? Will DD1 sleep when DD2 wakes and needs to eat? Gah!