Hey Sabs,
when Caleb did this we made a book part of the wind down, in his room where there were no distractions, it was quieter and he could focus on the story, then it was a quick song in the bed, kiss and leave.
Im wondering if her nap is too late though? Caleb was always at the higher end and hes been on a 1pm nap for about 8 months now and he wakes at 6.30/7am perhaps try bringing her nap back down again and see if that makes a difference?