We've got a 2yr old (well.. 3 in March) and a 14mth old sharing a room. They're in bunks DS is in the top bunk and DD on the bottom.

DD still wakes frequently and ends up in our bed through the night. But DS is never disturbed by this.

DS goes to bed without fuss around 7.30pm. and DD goes to bed anytime in the evening.. depends really. She hasn't gotten into a routine of her own yet. But she's usually down for the night around 9 or 10 (as in any wakings after that are quick feeds and back to sleep, not up to play).

It hasn't been a problem so far The only thing is if DD is asleep in there during the day I have to remember to keep DS out of there. But that's not too hard coz most toys and books and things are out in the play room, and I usually remind him to grab anything he wants out of there because DD is going to have a sleep.

I'm sure you'll find a way to make it work