How many hours a day does a four-month-old baby usually sleep?

Every mother wants her newborn to get enough sleep to ensure the healthy growth of the newborn. Therefore, parents of 4-month-old babies want to fully understand how many hours a day a 4-month-old baby sleeps? The following content introduces in detail to many parents how many hours a 4-month-old baby sleeps a day? You can have a comprehensive understanding.

The normal amount of sleep a child needs every day is as follows:

Newborn to 2 months: 20 hours

2-4 months: 16-18 hours

4-9 months: 15-16 hours

9-12 months: 14-15 hours

12-15 months: 13-14 hours

15 months to 2 years old: 13 hours

2-3 years old: 12.5 hours

3-5 years old: 12 hours

Sleep affects height

Sleep is a key factor affecting height, especially in early childhood, because the growth hormone that promotes human growth is secreted in pulses throughout the day, reaching its peak about 2 hours after falling asleep. The growth hormone secreted at this time accounts for almost half of the daily secretion, which is the golden time for growth.

After a follow-up study, scholars from Emory University in the United States found that before babies grow in height for 48 hours, they will become sleepy, sleeping an average of 4.5 hours a day for two consecutive days. For every extra sleep a sleepy baby gets, the likelihood of growing taller increases by 43%; for every extra hour of sleep, the likelihood increases by 20%. Moreover, childhood is a critical period for developing sleep patterns. Once the sleeping and resting habits are fixed, it will be difficult to correct them when you grow up.

What time does the baby go to bed?

The baby should start sleeping at 20:00, and it is best to enter deep sleep at 21:00. The secretion of growth hormone has its specific rhythm. People can only produce growth hormone after falling asleep. It gradually reaches its peak one hour after deep sleep. Generally, the peak period of secretion is from 22:00 to 1:00 in the morning. If your baby wants to grow taller, he must sleep well.

How much sleep does a 4-month-old baby need in a day? The above is an introduction, and we also have an understanding of the sleep time of babies of other age groups. After fully understanding the above introduction, as a parent, you must create conditions for your baby to get more sleep, which is beneficial to the baby's physical health and growth.