to have put my 18 month old DS and 3 year old DD in the same bedroom. It's only been a few nights, but so far they have managed to wake each other up several times a night, as well as DS waking around 5 each day and then not going back to sleep and we have to bring him into bed with us. Before we put them in the same room, they would both pretty much sleep all night, and DS if he woke at 5 would yell for a bit before going back to sleep. However with DD in there of course I can't let him yell, so we have to get him up. What to do? I am desperately hoping it will get better ...