My baby sleeps from 10:30pm to next morning 7:00am, and has 3 times naps a day (total 3 hours). He takes 11-12 hours to sleep in a day. I've talked this to doctor, and he said that's good, the baby will be much 精靈 when he study in school.
教養孩童, 使他走當行的道, 就是到老他也不偏離.