4-year-old baby sleep time

A four-year-old baby has reached a certain stage of development. Children grow relatively fast at this time, so they need plenty of time to rest. Generally speaking, a 4-year-old baby needs 12 hours of sleep. Parents must control their children's sleep time to about 12 hours, so as to ensure the baby's healthy development and rapid growth.

The younger your baby is, the more sleep he or she needs. Babies aged 3-4 years old generally sleep for 12 hours. Sleep generally refers to two times a day: one is at night and the other is nap. Night is important, and nap is also important. The baby's body is still developing. From morning to noon, due to participating in group educational activities and various game activities, the body must be very tired, so a nap is especially necessary. You need to rest after eating to allow the food to be digested. Naps are good for your baby's body and mind. The length of the nap should vary according to the baby's age, personality and climate. Generally, 1.5 to 3 hours of sleep is enough. Sometimes, if the baby sleeps too long, you need to wake him up gently to prevent him from having difficulty falling asleep at night.

1. Baby sleep and growth

Just like charging a battery, babies are able to replenish and restore their consumed energy during sleep. When the body is asleep, the secretion of growth hormone, which is closely related to growth and development, reaches the highest level; when infants and young children are sleeping, the secretion of growth hormone can reach three times or even more than that in the non-sleeping state. Sleeping can provide the body with sufficient growth hormone, which promotes the development and maturation of the child's nervous system and brain, and the child can grow up healthily. When children sleep, hormones that stimulate muscle growth and help muscle recovery will be secreted more. These growth hormones can help children convert body fat into energy for muscles and make their bodies stronger. Therefore, sleep is very important for children's growth and healthy development.

2. Infant sleep affects cognition

When a baby is sleeping, half of the time the brain is organizing, reassembling and recognizing the information received during the day. Some parents think that the movement of their child's eyes means he is about to wake up. Parents should pay close attention to the quality of their children's sleep, avoid waking them up at will, and help them develop good sleeping habits. Studies show that if children don't get enough sleep, they can't concentrate fully. If children do not get enough sleep for too long, they will lose interest in things in the outside world, and it will also affect their mood and they will not be able to adapt well before going to school.

If sleep is reduced or absent, the resistance of cells will be reduced, and the function of immune cells, T-cells and monocytes will also be weakened.

4. Baby sleep and learning

The research report points out that babies sleep not only to restore their energy, but also to stimulate their brains, which is very important for learning. If you want to maintain your cognitive ability and expand your memory, you need sleep, and learning ability also requires memory as a foundation.