how long should my child sleep at night
4-12 Months Old: 14 - 15 hours per day. While up to 15 hours is ideal, most infants up to 11 months old get only about 12 hours of sleep. Establishing healthy sleep habits is a primary goal during this period, as your baby is now much more social, and his sleep patterns are more adult-like.n fact, they tend not to have much of a pattern at all. 1-4 Months Old: 14 - 15 hours per day. By 6 weeks of age your baby is beginning to settle down a bit, and you may notice more regular sleep patterns emerging. The longest periods of sleep run four to six hours and now tends to occur more regularly in the evening.