Create a comfortable sleep environment that's tailored to your child. Some babies need more quiet and darkness than others. Recordings of soft music or nature sounds or the sound of a gurgling aquarium can be soothing. Make sure the sheets are cozy (warm them with a hot water bottle or a microwavable heating pad, for example, before laying your baby down) and that sleepwear doesn't chafe or bind. Younger babies may sleep better when swaddled. Don't overdress your child or overheat the room.
If your baby is growing poorly or is difficult to console, you should talk to your child’s pediatrician to ensure that your child’s sleeping difficulties have no medical cause. Likewise, if you are struggling with depression, it is critical to discuss this with your child’s pediatrician as well as your own physician. Poor sleep can prolong postpartum depression in mothers.

Though many of the parents I see in clinic have put up with terrible sleep for years, sleep training is a safe and effective tool to help babies learn to soothe themselves at night. For this guide, I reviewed the literature on infant sleep. As director of the Pediatric Sleep Center at Yale University, I have extensive experience helping families to address sleep problems. I have also written a book on the topic, which was inspired by sleepless nights with my own children.


The benefits of sleep training baby can be substantial: Everyone in the household will be well rested, and sleep is essential to baby’s development. A landmark 2007 study from the National Institutes of Health suggested that critical brain-development periods are dependent on adequate sleep. “Sleep training baby may not be fun, but I always tell families that it’s not dangerous, and developing good sleep hygiene is, in my opinion, one of the best things you can do for your child,” Gold says.

If your baby is older than six months, don’t worry, McGinn says: “It’s never too late to develop good sleep habits.” Dickinson says he finds nine months to be a bit of a sweet spot for parents in terms of getting babies to sleep through the night. “They are at a good age for understanding routines and don’t need to eat during the night,” he explains.
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