probably cause she was shattered hun. My DS does same if he has a short nap one day, but several days in a row then he starts to get OT & we get NW's - I guess b/c they can cope with the odd day but long term they still need that break to get them through, yk?
Thats great anyway, & good that she settled well at naptime too. Maybe today is the turning point. Think your plan for this avo sounds good, hopefully she will settle for bed around 5.5hrs A.
x