Developmentally, your child should be able to begin sleeping through the night by 6-months of age. At this age, the Moro Reflex has likely decreased considerably or stopped altogether. Your little one will begin to learn to self-soothe and will probably start to need fewer feedings. But, not all babies will start sleeping for a full 8-hour stretch as soon as they hit the 6-month mark. Every baby is different. By 11 months of age, most babies will already be sleeping through the night or ready to begin to work towards that goal. If you haven’t done any sleep training with your 11-month-old yet, it may be more challenging and take a little bit longer than it might have with a younger baby, however, it’s entirely possible to successfully train your 11-month-old to sleep through the night.