I am debating about whether or not to put Graham in his big bed. We have a beautiful crib out in the garage that is waiting to be put together. I really want to start getting Anneliese's room ready and moving Graham out is a necessity.
The age distance between the younger two will be the largest age difference we've had. They are a full 3 years apart. With previous additions we've always had to move the toddler by now. We just haven't had any issues with Graham crawling out of bed. It's super easy to just put him in there and call it good.
We usually keep the baby with us for the first 3 or 4 months until they are sleeping through the night so there is really no reason to move him other than I want to decorate. I am also concerned about him handling being in with the big boys. We may have to go to bed in shifts so he has a head start before the bigger boys head in. Right now we have 2 sets of bunk beds in the main room upstairs so all 4 will be in one room. They actually prefer it that way for now. I'm sure things will change as they get bigger.
We have 3 bedrooms upstairs and right now there's the boys "dorm," a spare room, and the nursery. Jared and I have talked about it quite a bit and we figure that as the boys near the 6ft mark we will eliminate the spare room and separate the boys 2 to a room while Anneliese has her own room.
It's really not that difficult it's just trying to decide how much sleep we're willing to go without while Graham handles the transition :)