Hi, 2hrs sounds pretty good at this age. All babies are different - some may be able to stay up for 2.5hrs at this age, but if your baby gets cranky at that point, then that is her personal limit I would think. If you're happy with her nap lengths and she's happy while up then I wouldn't look at changing anything at this point. If she was waking grumpy and not taking long naps, then we can look at tweaking her routine.