Is My Baby Ready? From Rolling Over to Sleeping on Her Belly, Here's Our Get-Real Milestone Guide

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Patty Onderko on Jul 13, 2011 at 5:18PM

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Sleep Train?

Source: JGI/Jamie Grill/Blend Images/Getty Images

Ready at: 4 months

Not before 4 months, which is when most infants develop the ability to self-soothe, says pediatrician Wendy Sue Swanson, M.D., a spokesperson for the American Academy of Pediatrics and blogger for Seattle Children’s Hospital. Newborns need help settling down, she says, but your baby’s nervous system begins to mature between 4 and 6 months, making her capable (most times) of calming herself down at night. She also learns during this time how to bring her hand to her mouth and reposition herself if she’s uncomfortable. Common-sense precaution: Rule out other causes of night waking (fever, a dirty diaper, etc.) or crankiness before letting your tyke wail for any length of time.

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