Ok, so no, once you're still one 3 naps but A time are upwards of 2:15 or so, 12hr nights go out the window. They often go at the beginning of a nap drop transition and then the nights lengthen again when the nap drops. Has LO always been on the high end of A times?
I sometimes suggest using A time as a guide:
- work out A time and therefore nap time you're aiming for
- watch clock til 10min before nap time
- watch LO for sleepy cues
- PD with cues or 10-15min after nap time, whichever is sooner
This allows you to then observe A times determined by LO to some extent and look at nap lengths for trends or to update the A time you're aiming for.
Here's some info re: the 3-2 transition:
All about the 3-2 transition- 5/6 monthsI would probably do something like this given what you've written:
6 - WU
8:45/9 - nap
10:15/10:30 - WU
1:15 - nap
2:45 - WU
5:15 - CN (cap at 30min)
7/7:30 - BT (depending on how she goes after the capped nap)
OR
6 - BT (if CN fails)