She points out that it has been recommended b (22 อ่าน)
She points out that it has been recommended by the US's National Sleep Foundation that babies up to three months old should obtain 14-17 hours of sleep in a 24 hour period, but that as few as 11 or as many as 19 hours might be appropriate. Meanwhile, sleep length recommendations from the American Academy of Sleep Medicine make no recommendations at all for infants under four months old. Neither body makes specific recommendations for nap versus nighttime sleep amounts.
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