How is she sleeping within that 8.30pm - 7am time? 2 sleeps a day sounds normal to me...

Matthew went through a huge change sleep wise at 8 months and did you read the other threads in this forum, there are quite a few that have had the same happen to them.

Making sure you have a night time is ritual I believe... hmm... and yep, not letting her get up and playing after bed is on the list. But you know that.

I'll look forward to seeing how you go tonight and we'll nut this out. Give the other threads a read though - some great tips!