I have never liked closing DD's door except for day time sleeps, I like to be able to hear her in the night and I found the monitor became too distracting overnight, We put DD in her big bed just before she turned two and we used a safety gate in the door way just until she started sleeping through the night fully in the bed which was just after her 2nd birthday, now she pretty much stays in bed and has only on a couple of occasions come to find us in our room when she usually hops in with us.