A beautiful dream that a child is experiencing, creating a warm and familiar space, making parents feel happy and peaceful.

But parents may not know that these three behaviors exhibited by children during sleep indicate a high IQ.

Three sleep behaviors that indicate a high IQ in children

Sleep talking

A study published in Nature Communications found that sleep talking is a sign that the child’s brain is “organizing information.”

Psychologists point out that children experience and acquire new information during the day, and sleep talking is actually a manifestation of the brain continuing to “digest” this new knowledge at night.

If a child occasionally talks in their sleep, it means their brain is working hard to process the day’s experiences.

Sleep talking is a sign that the brain is “organizing information.”

In fact, parents may worry that their child is not sleeping well. However, a study by Stanford University found that during deep sleep, the brain clears out “waste” produced during the day, consolidates memory, and promotes the strengthening of neural connections.

Children who talk in their sleep are in a deep sleep state, and their brain is in the process of eliminating waste. Moreover, children who tend to sleep talk often have dynamic intellects and strong learning abilities.

Of course, if a child talks in their sleep too frequently, especially if it is accompanied by crying or shouting, it may indicate that they are under significant psychological stress during the day and need extra attention.

Changing sleep positions

After falling asleep, children often change their sleep positions, sometimes turning over and kicking off their blankets.

In fact, this is a sign of healthy brain development, reflecting sensitivity to external stimuli and the brain’s ability to self-regulate.

For example, a child may kick off their blanket because they feel too warm, indicating sensitivity to temperature. Or they may toss and turn in their sleep as their brain adjusts their body to find the most comfortable sleeping position.

Studies have also found that children’s movements during sleep promote brain and body development.

Moderate tossing and turning can help children sleep more soundly, and deep sleep is key to brain recovery and development.

Children often change sleep positions and kick off their blankets during sleep.

Smiling while sleeping

This is a sign that the child’s brain is processing pleasant information.

According to psychologists, a child’s brain develops rapidly during infancy and is sensitive to external stimuli from the environment.

If a child experiences enjoyable events during the day, these memories will be reactivated as they fall asleep, forming dreams that make them smile. Smiling during sleep reflects inner happiness and satisfaction.

At the same time, smiling in dreams is an expression of positive emotions, releasing stress, and contributing to a cheerful mood and positive attitude.

Additionally, smiling stimulates the release of neurotransmitters in the brain, which is beneficial for brain development and cognitive function.

How to improve children’s sleep quality

These behaviors typically occur when children are in a deep sleep state. So, how can we improve sleep quality and support brain development?

Experts suggest the following helpful methods for parents to consider.

Maintain a consistent sleep schedule

A consistent sleep schedule is the foundation for high-quality sleep.

Having a fixed bedtime and wake-up time every day helps establish a biological clock and improves sleep quality.

Create a conducive sleep environment

Use light-blocking curtains to create an atmosphere conducive to sleep. Sheer curtains can help block harsh light from outside, making the child’s bedroom more comfortable.

When light is properly controlled, children will fall asleep more easily and sleep more soundly.

Additionally, a night light with a soft, warm glow will create a cozy ambiance without being too bright or disturbing the child’s sleep.

A consistent sleep schedule is the key to quality sleep.

Avoid overstimulation before bedtime

One to two hours before bedtime, avoid excessive teasing, strenuous exercise, or electronic devices. Be mindful of not overstimulating the child, which can impact their sleep.

Instead, opt for reading a calming bedtime story to help the child relax and fall asleep more easily.

Healthy eating habits

Avoid eating right before bedtime, and don’t overeat at dinner to prevent digestive issues.

Moderate exercise

Moderate exercise during the day can help children fall into a deeper sleep at night.

Parents can take their children outdoors for a run or engage in light physical activities.

Pay attention to emotions

Avoid scolding or punishing children before bedtime.

Be mindful of their emotional state during the day, address any issues promptly, and don’t let negative emotions carry over into the night.

By paying attention to children’s behaviors and implementing appropriate measures to improve sleep quality, parents can positively support their child’s brain development.