Sleep Science
Your body clock is a physical structure, not a metaphor
It sits above the optic chiasm, it contains about 20,000 neurons, it keeps near-24-hour time in a dish with no external input, and the genes that run it won a Nobel Prize.
Kingdom of Dream — What happens to us in the dark
Sleep Science
What actually happens across a night of sleep
Sleep is not a single state you fall into and climb out of. It is four distinct conditions the brain cycles through, and the order they arrive in explains almost everything about how a night feels.
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Dream Research
Why do we dream? Four serious theories and what each one gets right
There is no consensus, and anyone who tells you otherwise is selling something. But the competing explanations are more interesting than the certainty on offer, and they are not all mutually exclusive.
Dream Research
What sleep does to memory, and why cramming does not survive the night
Learning does not end when you stop studying. A substantial part of it happens while you are unconscious, in a process that can be observed, disrupted, and — with a well-timed sound — steered.
Lucid Dreaming
Lucid dreaming: what is actually established and what is wishful thinking
It was demonstrated in a laboratory in 1981 by a dreamer signalling with his eyes. Everything since has been the slow separation of a real phenomenon from an enormous amount of surrounding nonsense.
Nightmares & Disorders
Nightmares are treatable, and the treatment involves rewriting the ending
Chronic nightmare disorder affects several per cent of adults, wrecks sleep, and is rarely asked about. The best-supported treatment takes about four sessions and involves changing the story while awake.
Symbols & Meaning
Falling, teeth, being chased: why the same dreams recur across the world
A handful of scenarios turn up in dream reports from every culture surveyed. That is a real finding. What it means is where the evidence stops and the interpretation industry begins.
Sleep Science
All sleep science →
Sleep Science
What actually happens across a night of sleep
Sleep is not a single state you fall into and climb out of. It is four distinct conditions the brain cycles through, and the order they arrive in explains almost everything about how a night feels.
Sleep Science
Your body clock is a physical structure, not a metaphor
It sits above the optic chiasm, it contains about 20,000 neurons, it keeps near-24-hour time in a dish with no external input, and the genes that run it won a Nobel Prize.
Sleep Science
Are you really a night owl? What chronotype is and how much of it is fixed
A substantial part of your preferred sleep timing is genetic and cannot be trained away. The rest is light exposure, which can — and the difference matters for anyone fighting their alarm clock.
Dream Research
All dream research →Dream Research
Why do we dream? Four serious theories and what each one gets right
There is no consensus, and anyone who tells you otherwise is selling something. But the competing explanations are more interesting than the certainty on offer, and they are not all mutually exclusive.
Dream Research
What sleep does to memory, and why cramming does not survive the night
Learning does not end when you stop studying. A substantial part of it happens while you are unconscious, in a process that can be observed, disrupted, and — with a well-timed sound — steered.
Dream Research
Why some people remember every dream and others remember none
Everyone dreams. Recall varies enormously between people, and the differences are measurable in brain activity, personality, and the simple question of how you wake up.
Lucid Dreaming
All lucid dreaming →Lucid Dreaming
Lucid dreaming: what is actually established and what is wishful thinking
It was demonstrated in a laboratory in 1981 by a dreamer signalling with his eyes. Everything since has been the slow separation of a real phenomenon from an enormous amount of surrounding nonsense.
Lucid Dreaming
False awakenings: the dream where you get up and start your day
You wake, get out of bed, make coffee, and then wake again. Some people go through the loop several times in a night, and the experience is unsettling in a way ordinary dreams are not.
Lucid Dreaming
What you can and cannot do inside a lucid dream
Lucidity is awareness, not control, and the two come apart constantly. Experienced dreamers report a consistent set of things that work, things that fail, and things that end the dream immediately.
Nightmares & Disorders
All nightmares & disorders →Nightmares & Disorders
Nightmares are treatable, and the treatment involves rewriting the ending
Chronic nightmare disorder affects several per cent of adults, wrecks sleep, and is rarely asked about. The best-supported treatment takes about four sessions and involves changing the story while awake.
Nightmares & Disorders
Sleep apnoea: hundreds of times a night, and most people have no idea
The airway collapses, oxygen falls, the brain briefly wakes to reopen it, and the whole sequence repeats until morning. The sleeper usually remembers none of it and wonders why they are so tired.
Nightmares & Disorders
Sleep paralysis: awake, aware, unable to move, and often not alone
The mechanism is simple and well understood. The experience is one of the most frightening things a healthy person can undergo, and it has generated remarkably consistent folklore across the world.
Symbols & Meaning
All symbols & meaning →Symbols & Meaning
Falling, teeth, being chased: why the same dreams recur across the world
A handful of scenarios turn up in dream reports from every culture surveyed. That is a real finding. What it means is where the evidence stops and the interpretation industry begins.
Symbols & Meaning
Freud on dreams: what has survived and what has not
The Interpretation of Dreams shaped a century of thinking about the mind. Almost none of its specific claims are supported by evidence, and a couple of its general ones look better than they did.
Symbols & Meaning
Jung, archetypes and the collective unconscious: a sceptical reading
Jung noticed something real about recurring images across cultures and proposed a mechanism that cannot be tested. Separating the observation from the explanation is worth doing carefully.
Myth & Folklore
All myth & folklore →
Myth & Folklore
Dream incubation: the ancient practice of sleeping somewhere on purpose
For over a thousand years, sick people across the Mediterranean travelled to temples to sleep, in the expectation that a god would appear in a dream and prescribe. Hundreds of their testimonials survive, carved in stone.
Myth & Folklore
The mare, the hag and the jinn: how one physiological event became a global folklore
Cultures with no contact with each other produced strikingly similar accounts of a nocturnal presence that pins the sleeper. The convergence is not coincidence, and the explanation is in the brainstem.
Myth & Folklore
Aboriginal Australian Dreaming is not about dreams
The English word is a nineteenth-century translation of concepts it does not fit, and the confusion it created has been remarkably durable. What the term actually refers to is something else entirely.
About Kingdom of Dream
Sleep science, dream research, folklore and the strange, ordinary business of spending a third of your life unconscious. We publish explanatory articles rather than news, which means an article here is written to still be useful a year from now. Every piece is bylined, sourced and read by an editor before it appears — the full process is set out in our editorial policy.