I'm a live-in nanny for three children (3y, 2y and 11 weeks) 2y boy has started climbing out of his cot at bedtime and leaving his room- not crying, talking, he just comes out. Trying with mum rapid return technique- but looking for any advice from a nanny etc pov. Have found him on the stairs at 9.30 this week, just standing there. He cant get back in his cot so cant close door, he'll play all night. really difficult to deal with, particularly with the other two.