How many hours sleep usually for two month old baby .

12 to 14 or so...: It really depends if they are alert and awake when not sleeping. Some babies will be ok with 10 to 12 hours total, while others need more. So if they are sleeping roughly through the night, or waking once or twice, but going 8pm to 6am, that's 10 hours, plus a nap or two during the day for 1-3 hours total, puts you in that range. If the baby is alert, and interactive, you're doing fine.