What do young people need to be happy, healthy, and reach their fullest potential?
Love? Of course.
Support? Yep, and plenty of it!
Encouragement? You bet. Good role models? Yes, yes, and yes again.
Each of these elements is fundamental to any child’s success. But something else comes into play too: Sleep.
That’s right, although it may not be the first thing that springs to mind here, the more you learn about the topic, the more you realize that getting the right amount of high-quality sleep as a child is crucial to life’s short and long-term trajectory.
Today, I want to dive into the literature on children's sleep & teen sleep to explain why that’s the case. Without further ado, here are the main benefits of good sleep as it pertains to young people.
 Paruthi S, Brooks LJ, D'Ambrosio C, Hall WA, Kotagal S, Lloyd RM, Malow BA, Maski K, Nichols C, Quan SF, Rosen CL, Troester MM, Wise MS. Recommended Amount of Sleep for Pediatric Populations: A Consensus Statement of the American Academy of Sleep Medicine. J Clin Sleep Med. 2016 Jun 15;12(6):785-6. doi: 10.5664/jcsm.5866. PMID: 27250809; PMCID: PMC4877308.
 Cheng, Wei, et al. “Sleep Duration, Brain Structure, and Psychiatric and Cognitive Problems in Children.” Molecular Psychiatry, vol. 26, no. 8, 1 Aug. 2021, pp. 3992–4003, View Resource
 Sharman, R., & Illingworth, G. (2020). Adolescent sleep and school performance — the problem of sleepy teenagers. Current Opinion in Physiology, 15, 23–28. View Study
 Why Are Teen Brains Designed for Risk-taking? (n.d.). Psychology Today. View Resource
 Wheaton, A. G. (2016). Sleep Duration and Injury-Related Risk Behaviors Among High School Students — United States, 2007–2013. MMWR. Morbidity and Mortality Weekly Report, 65. View Study
What do most babies and teenagers have in common?
They sleep…a lot.
A 2015 study in the Journal of Clinical Sleep Medicine  begins with a list of consensus recommendations for sleep in pediatric populations.
In it, they write that for optimal health, infants aged “4 months to 12 months should sleep 12 to 16 hours per 24 hours (including naps)” and that teenagers “13 to 18 years of age should sleep 8 to 10 hours per 24 hours on a regular basis”.
Why so long?
Because that’s what their brains and bodies need to fuel the many changes happening inside them. Just as sleeping after a workout helps your muscles recover, sleeping lots during childhood supports our physical and neurological development.
For proof, look no further than a recent study in Nature  that investigated (among other things) the impact of sleep duration on brain volume in a whopping 11,067 9 to 11-year-old children.
The authors found that “the brain areas in which higher volume was correlated with longer sleep duration included the orbitofrontal cortex, prefrontal, and temporal cortex, precuneus, and supramarginal gyrus.”
Correlation doesn’t imply causation. But this remains a compelling piece of research demonstrating the link between a child’s sleep and development.
Most people know (anecdotally, at least) how damaging sleep deprivation is in adulthood. Unfortunately, fewer people realize that it seems downright disastrous to a young person’s short- and long-term outcomes.
Here are a few areas where sleep seems particularly valuable:
I’ll draw your attention back to the aforementioned study in Nature here.
The authors write, “Dimensional psychopathology (including depression, anxiety, impulsive behavior) in the children was negatively correlated with sleep duration.” In other words, the less sleep they got, the more psychopathology they displayed.
They say that “…psychiatric problems…were significantly associated with short sleep duration one year later”. So, poor sleep can create an environment for psychiatric issues, which can bubble over into ongoing sleep problems—a potentially vicious cycle.
A wealth of evidence points to the value of sleep on a teenager’s cognitive capabilities and academic achievement.
For example, a 2020 article in Current Opinion in Physiology  notes how “shortened sleep opportunities can have a direct impact on an adolescent’s performance in the classroom.”
The authors then cite a lab study in which 15 to 17-year-olds demonstrated “impaired performance and lapses in sustained attention” following sleep restriction. Interestingly, after a simulated weekend of recovery sleep, their attention spans didn’t improve even though “self-reported sleepiness returned to baseline.”
Teenagers have a reputation for being impulsive and engaging in risky behaviors, such as drunk driving, drug-taking, rule-breaking, etcetera.
And there’s a good neurological reason for this…
As an article in Psychology Today  explains, “another area of the brain, the lateral prefrontal cortex (PFC), is responsible for mature self-regulation and develops gradually over the adolescence period.” And what happens when you lack the means for mature self-regulation? You take more risks!
This propensity seems to be compounded by a lack of sleep.
For instance, research in Morbidity and Mortality Weekly Report  found that students who slept for “?7 hours on school nights were more likely to report several injury-related risk behaviors”, such as riding a bike without a helmet or texting while driving, compared to those who slept 9 hours.
As you can tell, sleep isn’t just essential in adulthood! It’s fundamental for the health and wellbeing of our kids as well.
If anything, the evidence implies that sleep’s even more valuable as a child and teenager. I hope these insights on children's sleep & teen sleep have demonstrated why that’s the case and support an effort to improve the statistics for these groups.