It's possible that extending the first morning A might help her wake a little later eventually, if it results in a consistently longer nap. Sorry I haven't looked back properly, but do you think she was extra tired that morning when she napped 2h off a 3h 15min A time? When well rested, she may need longer? Or do you think it was more likely an OT 35mins? Did you try to resettle afterwards? Did she seem happy and well rested when she got up from that? I know it can be hard to tell! Many people find that OT naps are easier to deal with, since they tend to be easier to resettle from, compared to an UT nap. Alternatively it may be that you need some sort of outing to get her to nap well, I remember my DS was like that around this age - bit tiring sometimes but I ended up just making sure we got out, even just for a short walk, during every A time, so that he'd nap well.