SLEEP CHALLENGES

Well this is the latest with Kaipo and his wonderful bedtime/sleeping habits. The past week or so, the routine is: he gets out of his bed as soon as I leave the room, pounding on the door and yelling for mommy or daddy, I return 3-4 times continuing the same process and firmly telling him NOT to get out of his bed. After a while it becomes quiet, so I listen at the door for any playing or movement. Nothing I can hear. Later, I went in to check on him and this is what I found. Of course it's dark and this is how he'd finally given in-falling a sleep while reading a story. This chair is just next to the door. He is still in his crib. I know as soon as he started climbing out I should have switched him, for his own safety. But he seems to be an expert scaler, cuz we have not yet had any accidents or gotten hurt. I guess the next step is to put him in a "big-boy" bed and see what that does. Any advice is greatly appreciated!