08:54 10/07/2026
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Nguồn tham khảo
  1. Summer, J. V. (2025, July 15). How much do newborns sleep? Sleep Foundation. https://www.sleepfoundation.org/baby-sleep/how-much-do-newborns-sleep
  2. Newborn sleep patterns. (2024, July 30). Johns Hopkins Medicine. https://www.hopkinsmedicine.org/health/wellness-and-prevention/newborn-sleep-patterns
  3. Infant sleep. (n.d.). Stanford Medicine Children’s Health. https://www.stanfordchildrens.org/en/topic/default?id=infant-sleep-90-P02237
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