I would be inclined to try feeding her at midnight when she wakes up but do it in the dark so doesn't think it is get up time. She is at an age when many need more food to go overnight and some cereal before bed can help too. You could also try giving her a nap over your supper at 6 and then keep her up till later when you are ready to go. Used to do that with mine and it gave them time to be with daddy in the evening and then when the late news came on I would sit and relax and nurse them and then put them down so the 6 hours of sleep was from midnight to 6 am which was much better than only get a dab of sleep myself and then up through the night.