My DD was napping 1 x 2.5 hr, 1 x 2 hr and then about an hour catnap in the late afternoon.
However this week she is waking at around 1 - 1.5 hrs. Just a total change. Her morning awake time is still only about 1.5 hr, middle of the day is 2 hrs, then about 1.5-2 hrs, then usually 1.5hr before bed.
I think I may need to increase the morning awake time but it is so hard - she is so grumpy in the morning.