We have to do this as we currently only have 3 bedrooms and are expecting twins who will need DD2's room with a spare bed for me; DH works in a job where he can't be sleep deprived so having them in our room isn't an option.
Girls are great sleepers but the 5 year old often takes a while to settle and likes to read and sometimes potter about her room while she winds down to sleep. She likes a dim light. 3 year old still relies on her old baby mobile to get to sleep! She likes a very dark room with a star projector. 5 yr old will go on top bunk.
The more I think about this the worse it sounds... is it going to be a mess?? Any practical advice?