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SLEEP, SWEETHEART, SLEEP – How Insufficient Sleep Hurts Growing Minds

13 May 2024

5 minute read

SLEEP, SWEETHEART, SLEEP– How Insufficient Sleep Hurts Growing Minds

In the hustle and bustle of modern life, ensuring that children get enough sleep can sometimes feel like an uphill battle. Yet, sleep is not just a time for rest. It is a vital component in promoting healthy growth and development in children. Getting enough and good quality sleep positively impacts the child’s growth, memory, learning, attention, emotional regulation, and behaviour.

So, as you tuck your little one in tonight, remember the importance of prioritising their sleep. By empowering your child with healthy sleep patterns, you’re also nurturing their overall health and happiness, one restful night at a time.

How much sleep should a child get?

The sleep duration varies depending on their age. Generally, children require less sleep as they grow older. While this is a good rule of thumb for most kids, individual sleep needs may differ. The sleeping duration also includes daytime naps.

Age of Child
Recommended sleeping hours per 24 hours
Newborn to 3 months
16 to 18 hours
4 months to 12 months
12 to 16 hours
1 year to 2 years
11 to 14 hours
3 years to 5 years
10 to 13 hours
6 years to 12 years
9 to 12 hours
8 to 10 hours
Newborn to 3 months

Sweet dreams turn sour: Common sleep disorders

There are several common sleep disorders among children. These include obstructive sleep apnea, insomnia, sleepwalking, bedwetting, and frequent night terrors. Some of these disorders might be associated with serious underlying conditions.

Obstructive sleep apnea (OSA) occurs when the tissues in the throat block the airway during sleep. This can lead to loud snoring and disrupted breathing during sleep. OSA might be caused by obesity, enlarged tonsils, or certain birth defects.

A child with attention deficit hyperactivity disorder (ADHD) and autism might experience various sleep disturbances as well. If these sleep problems persist, leading to excessive daytime fatigue, difficulty concentrating, and diminished academic performance, it is recommended to seek medical help. Depending on the symptoms and medical history, several investigations including an overnight sleep study may be conducted to identify the problem.

How insufficient sleep hurts growing minds

Sleep plays a very important role in the development of young minds. It is composed of a series of complex neurophysiological states that help a child to learn and memorise. It is also important in language and cognitive development in infancy and early toddler years.

Studies have shown that poor sleep consolidation during the first two years of life has a significant relationship with decreased language skills and learning in later childhood, including understanding complex ideas and problem-solving. Napping is crucial for toddlers as it aids in memory consolidation, allowing new learnings to transition into long-term memories. Additionally, it fosters insightful and inferential thinking processes.

Similar to adults experiencing a night of poor sleep, children may exhibit grumpiness, inattentiveness, and a lack of focus the following day, potentially leading to poor school performance. Children who sleep fewer hours at night also demonstrate difficulties in concentration and are at a higher risk of exhibiting symptoms resembling ADHD. Besides, lack of quality sleep has significant negative effects on behavioural and emotional regulation in children and adolescents. In the long term, insufficient sleep can be linked to aggression, anxiety, lack of social skills, and hyperactivity.

During sleep, young children experience the peak secretion of growth hormones. Hence, lack of sleep can contribute to stunted growth. In addition, an unhealthy sleep routine may alter the levels of appetite-regulating hormones, glucose metabolism, and inflammatory biomarkers, which may increase the risk of childhood obesity and cardiometabolic diseases such as hypertension and diabetes.

Crafting the perfect bedtime routine for kids

In order to ensure your child wakes up early for school the next morning and gets sufficient rest, it is very important to set an early bedtime routine. In general, children below 12 years old should go to bed before 9 pm. As daylight diminishes in the evening, melatonin levels naturally increase, inducing feelings of sleepiness. Unlike teenagers and adults, children experience this surge in melatonin earlier, making the optimal bedtime for young school-age children typically between 7 and 8 pm. 

It is crucial to maintain a consistent bedtime routine for children, as frequent changes can disrupt their sleep patterns, leading to issues like insomnia. Additionally, toddlers who sleep late, lack naps, and are excessively tired are prone to frequent night-waking and early-rising. This is because the body releases more cortisol, an alertness hormone when a child is overtired and sleeps late.

Essential tips for cultivating healthy sleeping habits in kids

1. Establish a consistent bedtime routine

A consistent bedtime routine allows the child’s body and mind to know that it is time to wind down. This routine should be carried out calmly and soothingly. From brushing teeth, changing pyjamas, reading bedtime stories, and cuddling, these personalised routines will give the child a sense of comfort and familiarity and ease them into falling asleep. Most children fall asleep within 20 minutes after going to bed.

 

2. Create a conducive sleeping environment

A child should be encouraged to sleep in a comfortable, quiet, and dimly lit bedroom. Keep children away from distractions such as bright lights or excessive toys that may stimulate them. Ensure the room temperature is regulated to their comfort. Provide them with appropriate night attire and blankets. For children who are afraid of the dark, a dim night light can provide reassurance without disrupting sleep.

 

3. Prioritise exercise and healthy eating

Exercise is proven to help children fall asleep faster and without interruption. Most children need at least one hour of exercise daily but avoid vigorous activities two hours before bedtime. Additionally, drinks such as energy drinks, coffee, tea, and chocolate should be avoided in the evening. High-sugar snacks will cause a child to have difficulty falling asleep too.

 

4. Limit screen time before bed

Blue light emitted by TVs, computers, phones, and tablets suppresses melatonin levels, making it harder to feel sleepy. Other than that, engaging content may stimulate the child’s brain and emotions, making it difficult for them to wind down. Scary or violent media content has also been associated with sleep disturbances in children, including frequent night awakenings and nightmares. It is best to turn off electronic devices at least an hour before bedtime and keep the device outside of the bedroom.

In conclusion, sleep is essential for optimal growth and development in children. A good sleep routine helps a child to grow well, learn, concentrate, and manage their emotions and behaviour. Thus, it is important for parents to prioritise the sleep routines in children and encourage good sleeping habits from a young age.

This article first appeared in Parenthood, 13 May 2024.

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13 May 2024

5 minute read

SLEEP, SWEETHEART, SLEEP– How Insufficient Sleep Hurts Growing Minds

Dr. Chin Sheau Yin

Pediatrics

Learn more about Pediatrics in Columbia Asia

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