DD2 is 6 months, not a terrible sleeper, not a terrible sleeper. But we are having hell and all difficulty getting her to go to bed. She naps fine in the day (2 x 1.5hr naps today), woke from last at 3.30, just started putting her to bed around 7. It's 8.15 and she is still awake. Last night she finally went around 9.30. She has started on solids, is bf. She's a happy, lively, cheeky baby. This has been happening since we came back from holiday (she was going down no problem there around 7.30/8). My DP (who is doing the feeding) is about to lose her mind, I think. Any ideas why this is happening? Why won't she settle? She usually wakes for one feed in the night, but goes back to sleep fairly easily.