DD8 stopped somewhere in the 2-3 range, and slept about 11 hours a night then. We didn't have a schedule, because too many factors might influence her need that would be beyond our control... whether she fell asleep in the car earlier, the quality of her sleep the night before, level of activity, health issues, etc. Anytime we'd notice a sharp deterioration in her behavior, that was a signal she was ready to nap.
Along the way, she got to be pretty good at self-regulating. She began announcing to us that she was ready to take a nap, at around six months of age, with a made-up word.
