Yes, research suggests a tendency for night owls (evening types) to be more extroverted, impulsive, and novelty-seeking, while early birds (morning types) often lean towards conscientiousness and discipline, though personality and sleep patterns aren't fixed and can overlap. Many studies find evening types score higher in extraversion, while introversion is often linked to being a night owl because the quiet of night reduces social stimulation, but extroverts can also be night owls, enjoying late social activities.
A split of personalities
A greater proportion of night owls have been found to exhibit traits of extraversion, narcissism, Machiavellism, impulsivity, novelty-seeking, and risk-taking. Meanwhile, we tend to think of early birds in terms of being conscientious, disciplined, and emotionally stable.
Many introverts find peace in the solitude of nighttime. After all, introverts tend to be easily overstimulated by noise, crowds, and socializing—all the things that are ever present during the day. At night, much of that stimulation is removed.
A night owl, evening person, or simply owl, is a person who tends or prefers to be active late at night and into the early morning, and to sleep and wake up later than is considered normal; night owls often work or engage in recreational activities late into the night (in some cases, until around dawn), and sleep until ...
Some evidence suggests that high IQ is associated with later sleep patterns. However, it is unclear whether the relationship between IQ and later sleep is due to biological or social effects, such as the timing of working hours.
Research shows that people with ADHD often experience delayed circadian rhythms, meaning their natural sleep-wake cycle is shifted later. Many adults with ADHD are naturally “night owls,” feeling alert in the evening when most people are winding down.
The koala is famous for sleeping around 20-22 hours a day, which is about 90% of the day, due to their low-energy diet of eucalyptus leaves that requires extensive digestion. Other extremely sleepy animals include the sloth (up to 20 hours) and the brown bat (around 20 hours), with some snakes like the ball python also sleeping up to 23 hours daily.
Higher rates of anxiety and depression
One possible reason is that being a night owl is associated with higher stress levels and poor sleep quality Link is external, Link opens in new window — two risk factors for mental health disorders.
Occupations in this group that might require night shifts include bakers, assembly line workers, and machinists. Protective service. Firefighters, police officers, and security guards are among the protective service workers who have all-night shifts to ensure public safety.
Night owls tend to get less sleep
The reason why night owls tended to be more depressed, according to the study, could be the result of their general lack of sleep. Meaning they don't have different white matter integrity just because they're born with it.
Why are some people early birds while others are night owls? Dr. Krieger: Chronotypes, like being an early bird or a night owl, relate to our genetic inclination to sleep at a certain time of the day. We have genes that regulate our sleep cycles and release melatonin at a particular time to help prepare for sleep.
The mean shyness score for females (48.5) was substantially greater than for males (41.2), confirming that gender differences in shyness levels are consistent with previous research (Cheek and Buss, 1981; Rubin et al., 2009).
Introverts don't have higher intelligence than extroverts. IQ tests show that both groups are equally smart. Extroverts excel in situations where quick thinking and fast action are rewarded. They're great at engaging with their surroundings, responding to social cues, and handling tasks that require multitasking.
A study investigating the effect of sleep on brain performance has found a link between an individual's preference for morning or evening activity and their brain function, suggesting that self-declared 'night owls' generally tend to have higher cognitive scores.
The top 3 rarest personality types are consistently identified as INFJ (The Advocate), ENTJ (The Commander), and INTJ (The Architect), with INFJ usually being the absolute rarest (around 1.5%), followed by ENTJ (around 1.8%), and INTJ (around 2-3%) of the general population, according to Psych Central, Redeemed Mental Health, and Reddit.
The 3-2-1 bedtime method is a simple sleep hygiene strategy: stop eating 3 hours before bed, stop working 2 hours before bed, and stop using screens (phones, tablets, TVs) 1 hour before sleep, helping your body transition to rest by reducing stimulants and digestive load for better sleep quality. A more detailed version adds 10 hours (no caffeine) and 0 (no snoozing) for a 10-3-2-1-0 rule.
There's no single #1 happiest job universally, but Firefighters consistently rank high for job satisfaction due to their sense of purpose, while Care Workers, Counsellors, Content Creators, and IT roles (Java Devs, Systems Analysts) also appear frequently on "happiest" lists for fulfillment, autonomy, or good pay/balance. Overall, jobs with meaning, helping others, nature connection, strong coworker bonds, or good work-life balance tend to be cited as happiest.
Night owls who have delayed sleep phase disorder may also suffer from sleep onset insomnia and morning sleepiness, both of which can cause sleep deprivation — ultimately resulting in mood problems, poor concentration, increased pain and even hallucinations, in some extreme cases.
The Night Owl CEOs
A few names might surprise you: Elon Musk — often works late into the night and wakes up around 9 AM. Mark Zuckerberg — more of a night owl than a sunrise chaser but he still manages to wake up at 7 AM.
It may not be set in stone, but Psychology Today postulates that intelligent people are more likely be night owls.
It might not be needing more sleep but rather better sleep. Specifically, prioritizing the window from 10 PM to 4 AM, which is often considered the “golden hour” for the circadian rhythm, and that window offers unique benefits for physical and mental well-being.
Yes, the Navy SEAL sleep trick (an 8-minute power nap with elevated legs) is a real technique for quick rest, popularized by former SEAL Jocko Willink, that helps improve alertness and reduce fatigue, though its effectiveness depends on individual relaxation skills and it's not a substitute for full nighttime sleep. The method involves lying down, elevating your feet above your heart (on a chair or couch), relaxing facial muscles, dropping shoulders, and clearing your mind for about 8-10 minutes to promote relaxation and blood flow, preventing grogginess.
Giraffes
Adult giraffes can go weeks without sleeping and when they do sleep, it's only a little catnap of around 30 minutes a day in short 5 minute bursts at a time. Being such large and slow creatures they are constantly on guard against predators so they often avoid laying down and sleep standing up.