DD1 is almost 4, DD2 13 months; we moved them in to same room just before Christmas. DD1 is often jealous of DD2. At first it went OK, but we have a lot of competitive behaviour - DD1 climbing in DD2's cot, wanting milk etc. And a good bit of getting out of bed/messing about from DD1 (which never used to happen when she was on her own). We do pjs, teeth, stories and then bed. Sometimes DD1 shouts for water/bear/whatever you're having yourself and disturbs the baby as she is crying herself trying to go to sleep. My DP in particular gets very stressed by it. Any tips or suggestions. Currently they go to bed at the same time which might be the problem.
They are fine once asleep, however...