Hi Hun,
Good advise from Lauren
It does also seem like you're lacking some consistency with the differences in WU/nap time/length and BT. Trust your mother's instinct, it's the best tool you have. Would you say she was high/low/average sleep needs
Can you watch her in the morning and make a judgement call on whether you think she is UT or OT at nap time
I know this would be hard to bear, but is there any way you could wake her at a consistent time in order to set the day
So like this:
WU 5.30
Nap 11.30
BT 6.30
Then you could start to nudge forward in 15 minute increments until you hopefully get closer to this:
WU 6.30
Nap 12.30 to 2.30
BT 7.30
I know it would was a killer for me to wake Sam early, but this work for us at one point when consistency was seriously lacking.
Let me know your thoughts Hun and (HUGS) x.