according to day care and my experience
1hr morning nap
1.5hr afternoon nap
9hrs during the night (it should be 10, but recently, he is good, he wakes
up in the middle of the night, cry and have no reason. and he pooped!!!!
during the night now. :( I have to clean him up and change diapers, he is
crying and crying. finally we both tired and gets back to sleep. )