Short sleep

• For children over 4 months of age, a nap should last one hour or more.
• Short naps of 20-40 minutes are the norm for children under 4 months of age, as naps are still shallow and in a chaotic order.
• Babies under three months of age do not yet produce melatonin.
• One nap may be short as long as the child sleeps the required number of hours in other naps.
• Sleeping in motion (in a stroller or car seat) can interfere with deep sleep.
• Sleeping in uncomfortable conditions (noisy, hot, uncomfortable, hearing parents' speech). See “Sleep conditions”.
• The child does not know how to "glue" the sleep stages together. See "Sleep prolongation".
• Improperly established regime and rhythm of the day.
• Hunger.
• Overworked.
• The child is not tired.
• Microsleep during the day.
• Incorrect bedtime.
• Incorrect sleep associations (breast, rocking, co-sleeping, pacifier).
• Monitoring the presence of an adult.
• Unusual place to sleep.
• Lack of routines for sleeping and waking up.
• The child is not able to fall asleep on his or her own.

References

https://www.sleepfoundation.org/baby-sleep/when-do-babies-sleep-through-night
https://medlineplus.gov/ency/article/002392.htm
https://www.sleepfoundation.org/children-and-sleep/when-do-kids-stop-napping
https://www.sleepfoundation.org/how-sleep-works
Марк Вайсблут — "Здоровый сон – счастливый ребенок". Издательство: Альпина нон-фикшн. ISBN: 978-5-9614-3583-2. Год выпуска: 2014. Язык: Русский. 640 стр.
Мадлен Дени  — "Сон вашего ребенка (сборник)". Издательство: Клевер-Медиа-Групп. ISBN: 978-5-91982-202-8. Год издания: 2013. Язык: Русский. 192 стр.

All recommendations, articles and other content of the baby sleep diary app are intended for physically and mentally healthy children without developmental disabilities and are for information purposes only. Always follow your doctor's recommendations and prescriptions. If your child is experiencing sleep problems, reflecting the presence of any disease, most often neurological, you should contact your doctor.