Babies will vary greatly in their sleeping patterns and in the number of hours they sleep, as can be seen from the typical ranges shown below.
0 - 2 months: 14 to 20 hours per day
3 - 12 months: 12 to 16 hours per day
In the first 2 to 3 months, newborns sleep a lot and at various times. Newborns do not have any established night sleeping patterns.
After 3 months of age, they slowly start to establish a night sleeping pattern.