Sleep Tips For Babies and Toddlers From Dr. Harvey Karp
The Happiest Baby: Dr. Karp's 10 Tips For Getting Your Baby to Sleep
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According to Dr. Karp, five to 10 percent of babies don't respond to white noise and swaddling; they still wake every two to three hours. In those cases, he says, "they need to sleep in a fully reclined swing moving at the fast speed."