What is sleep paralysis? The complete, calm explanation
Start here. What sleep paralysis is, what happens in your brain and body, why it feels terrifying, and why it cannot harm you - the full frame in one read.
9 min read
Knowledge Hub
Plain-language explanations of what happens in your brain and body.
What is REM atonia, and why does it keep you still?
During dreaming sleep your brain switches off your muscles on purpose. Sleep paralysis is that switch staying on for a few seconds after you wake.
6 min read
The timing glitch: why it happens at 5am and after a lie-in
REM periods get longer towards morning. More REM means more chances to wake up inside one.
5 min read
Weekends, stress and sleep debt: the three biggest triggers
Most episodes are predictable. Knowing your pattern turns a frightening surprise into a manageable event.
5 min read
Why sleeping on your back makes episodes more likely
Position changes airway sensation and body awareness. A simple switch to your side is one of the cheapest interventions.
4 min read
The ringing, buzzing and roaring sound explained
That loud electrical hum is your auditory system idling without external input while your brain is in a hyper-alert state.
5 min read
Heavy gravity, chest pressure and the sense of a presence
Shallow REM breathing plus a threat-activated amygdala plus a blurred body map produce the classic 'someone is sitting on me' experience.
6 min read
Sleep paralysis by the numbers: prevalence, duration, demographics
About 1 in 12 people experience sleep paralysis at least once. The numbers tell a reassuring story: common, brief, and not a sign of danger.
6 min read
From the night hag to neuroscience: the history of sleep paralysis
Long before EEG machines, cultures around the world already had names for waking up unable to move. Their stories describe the same physiology in different languages.
7 min read
Why sleep paralysis feels so terrifying (and why the fear is predictable)
The dread you feel during an episode is not a warning sign. It is the predictable output of a brain caught between two sleep states.
7 min read
What sleep paralysis is, medically — and what it can and cannot do to your health
Sleep paralysis is a recognised REM parasomnia. The episode itself is harmless. Here is exactly what it can and cannot do, and when it is worth seeing a doctor.
8 min read
Symptoms before, during and after an episode: a full timeline
Sleep paralysis has a recognisable shape: a drowsy build-up, a still and vivid middle stretch, and an emotional afterglow. Knowing the stages makes them far less frightening.
7 min read
How to reduce the odds: preventing sleep paralysis episodes
No method promises zero episodes, but a handful of evidence-informed habits - steady sleep timing, less alcohol, calmer stress levels and side-sleeping - measurably lower the odds.
6 min read
Tips and tricks for living well with sleep paralysis
A practical toolkit: what to say to yourself mid-episode, small movements that work, and a calm routine for the minutes after.
7 min read
Being the partner of someone with sleep paralysis: how to help
A clear guide for partners, housemates and parents: what an episode looks like from the outside, what actually helps, and a few words that make things worse.
6 min read
The psychology of fear: why sleep paralysis feels so terrifying
How a half-woken brain, an alert amygdala and an immobile body combine to produce dread - and why how you interpret an episode matters more than how often it happens.
8 min read
Sleep paralysis, anxiety and trauma: what the research actually shows
Sleep paralysis is more common in people with anxiety, panic disorder and PTSD, but having episodes does not mean you are mentally ill. Here is the honest, evidence-based picture.
8 min read
Stress, sleep loss and the brain: why episodes cluster around hard weeks
How hyperarousal, REM rebound and disrupted rhythms from stress, shift work, jet lag and substances raise the odds of an episode, and what to fix first.
8 min read
Mindset and psychological techniques that reduce sleep paralysis fear
Cognitive reappraisal, CBT-based approaches, and daytime rehearsal explain why the calmest response to sleep paralysis is one you practise long before the episode happens.
8 min read