When adults stay up late, they’re “night owls.” When kids do it, they’re labeled bad sleepers. Though to be fair, an adult’s late-night habits don’t usually reverberate through the rest of the household in quite the same way.
But kids, like adults, aren’t all built on the same internal schedule — they have different windows for when they function best. Some are naturally at their peak in the morning, while others hit their stride later in the day. These patterns, called chronotypes, can show up surprisingly early, even in toddlerhood, and are shaped by how an individual’s internal clock syncs with environmental cues like light and darkness.
Chronotype refers to your body’s preferred timing for sleep and wakefulness. Essentially, when you feel most alert and when you’re ready to rest. Most people fall somewhere along a spectrum: morning types, intermediate types, or evening types. And emerging research suggests these tendencies don’t just affect sleep, they can also be tied to children’s emotional experiences. Kids who skew later, for example, are sometimes wired for deeper emotional processing and heightened sensitivity, which can impact how they move through the world. Later rhythms can also be linked to shorter or more disrupted sleep, and in some cases, greater socioemotional challenges.
To better understand how late-night tendencies show up in younger kids (and what that might mean for the adults supporting them), we spoke with Dr. Jessica Meers, PhD, founder of Houston-based Rhythm Wellness, psychologist, behavioral sleep medicine specialist, and professor at Baylor College of Medicine. Here’s what we learned:
From a clinical perspective, can children truly be “night owls”?
The answer depends heavily on age and individual factors. The truth is that all kids are different and sleep patterns can vary pretty widely from kid to kid, even “normal” sleepers.
Think of chronotype as a spectrum. There aren’t hard cutoffs, but broadly speaking, “night owls” are those who feel more awake and alert in the evening rather than the morning. Every kid falls somewhere along that range. Some strongly favor mornings, some lean later, and others land somewhere in between.
That said, a true evening chronotype is relatively uncommon in younger children. Developmentally, most kids skew in the opposite direction, tending toward an “advanced” chronotype (what we’d think of as “early birds”). The younger the child, the more pronounced that tendency tends to be, which is why it’s fairly rare, though not impossible, to see a toddler with a genuinely delayed sleep pattern.
This starts to shift as children approach puberty. During adolescence, there’s a well-documented move toward a more “delayed” chronotype, with later bedtimes and wake times becoming the norm. After puberty, that preference for a later schedule is nearly universal.
How do evening chronotypes typically present in children, and how can parents tell the difference between a natural late rhythm and a potential sleep issue like insomnia?
Evening chronotypes will generally show a strong preference for a later bedtime. In kids, this can look like frequent requests to stay up later, seeming more alert in the evenings, taking longer to fall asleep, and having a harder time waking in the morning.
One of the clearest ways to spot a later chronotype is to see what happens when kids are left to their own schedules — on weekends or over the summer, for example. Kids who lean later will often sleep in much later on weekends compared to weekdays. Given the freedom, they’ll gradually push bedtime later and later, while still sleeping in to compensate.
These patterns can be easily confused with insomnia, but there’s an important distinction. The key question is: if left to set their own schedule, would they still get the sleep they need? In other words, if they have the opportunity, can they sleep well? For someone with insomnia, the answer is no.
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Recent research links later chronotypes in children with increased socioemotional challenges. How do you interpret that connection?
I actually think it’s less about the chronotype itself and more about the mismatch between a child’s biological clock and the world around them. Most people with delayed chronotypes struggle to meet their sleep needs, simply because society tends to favor earlier schedules — school, doctor’s appointments, sports, and other daily commitments often start early in the morning.
If a child has difficulty falling asleep early enough to match those required wake times, they’re likely to end up chronically short on sleep. And research has shown again and again that insufficient sleep is a strong predictor of poorer emotional and social functioning.
Sleep is vital for memory, attention, and learning, but it’s also essential for how we process and regulate emotions. When we don’t get enough sleep, the brain’s emotion centers tend to fire more quickly and more intensely, while the systems responsible for organization, planning, and regulation are dialed down. The result is greater emotional reactivity paired with a reduced ability to manage those emotions, an imbalance that can increase vulnerability to a range of mood and affective challenges.
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For people raising a night-leaning child, what are the most effective, realistic ways to support healthy sleep?
This is a tricky balance, because on the one hand you want to let kids get as much sleep as possible, whenever possible. On the other hand, if they have early commitments on a regular basis (like school or a doctor’s appointment), you don’t necessarily want them sleeping in on weekends or napping freely in a way that shifts their body clock too far, because that can make it harder to readjust to the weekday schedule. It’s like living with chronic jet lag.
So my general approach is this: if at all possible, allow them to sleep as close to their preferred schedule as you can, as long as it can happen consistently. With sleep, consistency is key. We want to avoid large swings between weekdays and weekends. During the summer, for example, it can actually be helpful to let them settle into a later bedtime and wake time!
There also needs to be a mindset shift for parents. Most kids with delayed sleep patterns aren’t staying up late or sleeping in to be oppositional, they’re doing it because their biology is driving it. So it helps to approach those mornings with some understanding, especially when you’ve tried multiple times to wake them and they’re still sound asleep.
One of the most effective tools, beyond a consistent sleep and wake time, is morning bright light. This is a powerful signal to the brain that it’s time to be awake. Getting outside soon after waking is ideal, but if that’s not possible, you can mimic daylight by turning on overhead lights, opening blinds, and making the environment as bright as possible. Aim for about 30–60 minutes of bright light exposure in the morning.
To reiterate, it’s important to frame these struggles as a biological timing issue rather than an attitude problem. The goal is to approach it as you and your child working against the mismatch, not you versus your child. And to be clear, the “problem” isn’t a delayed rhythm itself — it’s that society often doesn’t align with it. There’s nothing wrong with being a later chronotype; it simply means a child falls toward the later end of the sleep timing spectrum.
Read more: How to Navigate Sleep with Rest-Resistant Kids
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