My dd is 10.5 months old and until about 2 weeks ago, she was waking up at 6.45 which was great. These last two weeks she's started waking up earlier and earlier-this morning was 4.55. It's nothing to do with the light, it was still pitch black at that time, her room wasn't too cold either. She goes to bed at 7, sometimes a little earlier because by then she's tired and ready to go to bed. Have tried just leaving her to go back to sleep but she screams, tried picking up putting down, tried rocking her but nothing is working. I'm getting more and more exhausted which is not helping at work. She has recently undergone a growth spurt-could it be related? Any advice would be gratefully received as I'm so tired I can't think straight!