At what age do many infants typically start sleeping through the night for 5 uninterrupted hours?

Infants generally reach developmental milestones at varying ages, but many start sleeping through the night for about 5 uninterrupted hours by around 3 months of age. This period marks a significant transition in infant sleep patterns, as they begin to consolidate their sleep into longer stretches rather than waking frequently for feedings, which is common in the earlier weeks of life.

Around 3 months, many infants develop a more regular sleep schedule and can begin to sleep for longer periods at night, allowing parents to also get more rest. By this time, they may be able to go without a nighttime feeding, especially if they are gaining weight appropriately during the day.

While sleeping through the night can vary among individual infants, 3 months is often cited as a common time frame when many begin to achieve this milestone. As infants develop further, their sleep patterns continuously evolve, with many closing in on more consistent sleep by 6 months and beyond. However, the initial milestone of 5 hours of uninterrupted sleep tends to align closely with the skills and physiological changes that occur around 3 months of age.