How much will my baby sleep, and how can I tell if he is sleeping too much?

Newborn to 2 months old babies need about 16 to 18 total hours of sleep per day (and usually wake every two or three hours for feeding). They sleep about 8-9 hrs at night and 3-5 naps in the day. By about four months, most babies sleep about ten hours at night (with a few night feedings) and nap for three to five hours of sleep a day (spaced between two or three naps). In the first 6 months, unless your baby literally never wakes up, not even to eat, there is most likely no reason to worry your baby is sleeping too much. If after 6 months and you notice that your baby is still sleeping like a newborn and does not wake up to learn to flip, crawl and sit, you will need to visit a doctor to check on your baby as it may be due to certain medical conditions.