what age is your lo? I used fairy lights on a timer for dd from when she was about 2 1/2 i.e. she couldnt come through until the fairies woke up and if she did we took her back to her room. They first came on a 6am and then we moved the timer by 10/15 minutes every week or so until it got to the stage that she could come through when it was 7am. From about 3 1/2 though we used a digital alarm clock and said she couldnt come through till it said 7:00.