Baby Outta Whack!

This Jersi Lady is all outta whack! For 2 weeks now she's eaten at 9 or 9:30 and then slept throught the night for about 7 hours - waking up around 4 or 4:30 to eat and then sleeping the remainder of the night until about 8 or so... It's been Heaven! That is until she shook it all up again and decided two nights ago that this is no longer her preferred routine! Two nights ago she woke up at 11 and was wide awake until 1:30 when I finally convinced her that sleep was a good idea... then last night she woke at 10:30 and again was wide awake until around 1:30. Then up again at 3:30 ready to play again. WHAT?!? This does not work for me lady! Lets get back to our friendly sleep enriched routine, please?