Temperament

Journal Studies

More research is needed to identify normal sleep patterns in breastfed versus bottle-fed infants, in toddlers, on weekdays versus weekends, and as related to gender and ethnic differences. What is known is that children sleep longer at night and experience fewer night-wakings and daytime naps as they develop.

Exclusively breastfed infants had less colic and fussiness, and slept longer. Melatonin, which promotes sleep, available only in breastmilk, showed a clear relationship to infant sleep patterns.

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