I can understand your problem. My son would go to bed at 8:30 or 9, and since we got back from COsta Rica, whisch is a 2 hor difference, he started going to sleep at 11, and waking up at 10 am. What I did was try and push bedtime forward 15 mins at a time every night, but I dont want to wake him up in the morning because he knows how much sleep he needs, so he now goes to bed about 9:30 or 10, and that is what his body has adjusted to. I would say go by 15 mins increments and see if ti works, your baby will let you know when she is going down too early, but at leastyou can try. Good luck!!!