...3-6 months: Around this age, some babies may start to sleep for longer stretches at night, ranging from 4-6 hours. They may gradually begin to consolidate nighttime sleep. 6-12 months: By 6 months of age, many babies can sleep for longer periods without needing to feed at night. Some babies may start sleeping through the night, defined as sleeping 6-8 hours continuously without waking up. 1 year and beyond: By the age of 1 year, most babies should be able to sleep through the night without needing nighttime feedings. They typically sleep around 10-12 hours at night, with one or two naps during the day.