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It is late. Later than you meant it to be, again.
The house has gone quiet. Whoever you live with went to bed hours ago. Your phone has stopped buzzing because everyone who might message you is asleep. And you are wide awake, feeling more like yourself than you did all day.
Being a night owl is usually treated as a personality quirk, or a bad habit you have not got round to fixing. But sleep researchers have started measuring the link between night owls and loneliness — and what they found is not really about the hour on the clock at all.
What the research on night owls and loneliness actually found
A team at Brigham Young University — Alec Harlow, Karmen Smith and Marissa Woffinden — surveyed 442 people recruited through the online research panel Prolific. They asked each person three separate things.
First, whether they were a morning person or an evening person, using a standard questionnaire that treats this as a genuine preference rather than a habit. Second, how lonely they felt in general. Third — and this is the new part — how lonely they felt specifically when awake at night.
Then they asked people to rate their own mental health on a scale from 0 to 100.
The pattern held. The further towards the evening end someone sat, the worse they tended to rate their own mental health, and the lonelier they tended to report being. The correlations were modest in size — the largest was around .33 — but they were there, and loneliness accounted for a real part of the link. The findings were presented at the SLEEP 2026 annual meeting under the title “The Loneliness of Later Chronotypes: A Nighttime Pathway to Mental Health Risk.”
There is now a name for being lonely at night
The genuinely interesting piece here is the second loneliness question.
Researchers at the same university built a short questionnaire called the Nocturnal Loneliness Scale, designed to capture one narrow experience: feeling disconnected and isolated while awake at night. In the work describing how it was built, the scale measured a single clean thing, and it did so with excellent internal consistency — the reliability figure they reported was .97, which in plain terms means the questions were all pulling in the same direction.
That matters more than it sounds. It means night loneliness is not just ordinary loneliness with the lights off. It behaves like its own thing. You can be reasonably content at three in the afternoon and genuinely hollow at three in the morning, and that is not you being dramatic. It is a measurable state that somebody has now bothered to put a ruler against.
If you have ever tried to explain that to a morning person and watched their face go blank, this is the study you were looking for.
The part that quietly flips the story
Here is where the obvious explanation falls apart.
You would expect the night to be the problem. Awake alone, everyone else unreachable, the dark doing what the dark does. That is the story that writes itself.
The numbers say something else. When the researchers split the effect into two paths — how much ran through night loneliness, and how much ran through general, all-day loneliness — the general path was more than four times larger. Night loneliness carried a real and statistically significant share of it. It just carried the smaller share.
And even both paths together did not explain everything. A direct link between chronotype and mental health survived after both kinds of loneliness were accounted for. Something else is going on that this study did not capture.
So the cost of being a night owl does not seem to be mostly about the hours you are awake. It looks more like the cost of running out of step — of living on a schedule that the world around you is not running on. The meetings are scheduled for your worst hours. The invitations land when you are still surfacing. The people you would like to talk to are reliably unavailable at exactly the moment you have most to say.
The night is not what isolates you. Being out of phase with everyone else is.
Worth saying plainly: this is a snapshot, not a film. Everyone was asked everything on the same day, so nobody can tell you which came first — whether the late schedule pulled the loneliness in, or the loneliness pushed the schedule later. It was also presented as a conference abstract rather than a full peer-reviewed paper, and 442 people from an online panel is a decent sample, not a definitive one. Hold it as a good clue, not a verdict.
If the question of what comes first is the one bothering you, a separate long-running Norwegian study followed the same people for over twenty years to answer exactly that — and the order it found was not the one most of us assume.
Small things that actually help
None of these need money, a specialist, or time you do not have.
- Stop treating your chronotype as a character flaw. The questionnaire researchers use treats morning and evening preference as a trait to be measured, not a discipline problem to be scolded out of you. Shame about it costs you energy and buys nothing.
- Anchor the wake-up, not the bedtime. Bedtime is hard to force. Getting up at roughly the same time, and getting daylight on your face soon after, is the lever that is actually in your hands.
- Put one real conversation inside your own good hours. If your best self shows up at 10pm, stop scheduling the people who matter into your worst window. A late call with one friend beats a well-meaning breakfast you sleep through.
- Notice which loneliness you have. If the evenings are fine and only the nights are hollow, that is the narrow kind, and it usually passes with the hour. If it is there at noon too, the night is not your real problem and fixing your sleep alone will not touch it.
- Change what the room feels like, not just when you lie down in it. Light, in particular, does more to the body overnight than most people assume — there is reasonable evidence that sleeping with the light on is not neutral.
And if you genuinely do not know what is wrecking your nights, our free Why Can’t I Sleep? assessment walks through the usual causes in a few minutes and tells you which one most likely applies to you.
The hour when nobody is on your side of the world
There is one group this research did not set out to describe, and you may be in it.
A great many people are awake at night not by preference but by arrangement — night shifts, security work, hospitals, call centres, or simply living several time zones away from the family they are working to support. For them the misalignment is not a quirk. It is the job. The people they love are reliably asleep during every hour they have free.
The study cannot speak to that directly; nobody measured it. But it is hard to read the finding and not think of it. If being out of phase with the people around you is the thing that costs, then a great many people are paying that cost on purpose, for somebody else’s benefit, and nobody has ever thanked them for it.
Which is maybe why one line from a very old Hebrew song has outlived almost everything written around it. It makes a small, strange claim about the night: that the one who keeps watch over you does not doze off, and does not sleep. No nightly handover. No hours when the desk is unattended.
Whoever wrote that had no questionnaire and no sample of 442. They had only the same experience you are having right now — being awake while the world is not — and they landed somewhere unexpected with it. Not that the night is safe. Just that it is not unattended.
Tonight
You are probably not going to become a morning person. Most night owls do not, and the research does not really suggest you should try.
But if the finding holds, the thing worth adjusting is not the clock. It is the overlap. Not “go to bed earlier” — more like “make sure some part of your week puts you in the same hours as the people you actually want to be near.”
The quiet at this hour is real, and some of it is genuinely good. It is the only part of the day nobody else has a claim on.
It just should not be the only part of the day you get.
A question worth arguing about
Should workplaces and schools bend their schedules to fit different chronotypes, or is expecting everyone to run on the same clock a fair price for living alongside other people? Pick a side and make the case in the comments — we read every reply.
Share this
- Night owls really do report worse mental health and more loneliness. But the study found the late hour isn’t the main cost — being out of step with everyone else is. https://bgodinspired.com/index.php/health-and-wellness/night-owls-and-loneliness/
- There is now an actual scientific scale for being lonely at night, and it measures something different from ordinary loneliness. So no, you weren’t imagining that 3am is its own country. https://bgodinspired.com/index.php/health-and-wellness/night-owls-and-loneliness/
- Everyone tells night owls to fix their bedtime. New research suggests the thing to fix is the overlap — how many of your waking hours actually land inside somebody else’s. https://bgodinspired.com/index.php/health-and-wellness/night-owls-and-loneliness/
Questions people ask about night owls and loneliness
Are night owls more likely to be lonely?
Research from Brigham Young University, presented at the SLEEP 2026 annual meeting, surveyed 442 adults recruited through the online panel Prolific and found that people with a later chronotype reported more loneliness and rated their own mental health lower. The correlations were modest, the largest around .33. Because everyone was surveyed at a single point in time, the study shows that later sleep preference and loneliness travel together, not that one causes the other.
What is nocturnal loneliness?
Nocturnal loneliness is the experience of feeling disconnected and isolated specifically while awake at night. Researchers at Brigham Young University developed a short questionnaire called the Nocturnal Loneliness Scale to measure it, and reported that it captures a single consistent construct with high internal reliability. It is treated as distinct from general loneliness, meaning a person can feel reasonably connected during the day and still feel isolated during night-time wakefulness.
Is being awake at night the reason night owls feel worse?
Not mostly, according to the 2026 Brigham Young University analysis. When the researchers separated how much of the link ran through night-time loneliness and how much ran through general, all-day loneliness, the general-loneliness path was more than four times larger. Night-time loneliness still carried a real, statistically significant share. A direct link between chronotype and self-rated mental health also remained after both were accounted for, meaning loneliness explains only part of the picture.
Why does loneliness feel worse at night?
At night the ordinary supports that mask loneliness during the day are unavailable: other people are asleep, messages go unanswered, work and errands stop providing structure, and there is nothing left to do but think. Sleep researchers now measure this as its own state rather than as a version of daytime loneliness, using the Nocturnal Loneliness Scale. The practical implication is that night-time loneliness often eases with the hour, while loneliness that is also present at midday usually will not.
Can a night owl change their sleep schedule?
Shifting a chronotype is possible but slow, and researchers treat morning or evening preference as a measured trait rather than a habit. The most reliable lever is the wake-up time rather than the bedtime: getting up at roughly the same hour each day and getting daylight exposure soon afterwards pulls the whole cycle earlier over time. Forcing an earlier bedtime without moving the wake time usually produces time lying awake rather than extra sleep.
