If you want the short answer: breathe in gently through your nose for about four seconds, let the breath out slowly for about six, and repeat for five minutes. That single pattern, done without straining, is the core of almost every breathing exercise for sleep. Everything below is a variation on it.
Breathing exercises will not switch you off like a light. They give a restless body a slow rhythm to follow and a busy mind one simple thing to attend to. (Some people find it easier to pace the breath against a recording of slow waves than against a count.) For many people that tips the balance towards sleep; for others it is a first step before a longer technique such as progressive muscle relaxation.
This guide explains why slow breathing calms you, walks through five techniques step by step, and helps you choose one. It is part of our Relaxation guides, which cover the wider set of methods you can learn in an evening.
Why slow breathing calms the body
Your breathing is unusual among the body's automatic processes: it runs by itself, but you can also take the controls. That makes it a lever on a system you cannot otherwise reach directly.
When you are stressed or simply wound up from the day, the sympathetic side of the nervous system (the "get ready" side) is in charge. Breathing gets faster and shallower, the heart rate rises, muscles tighten. The parasympathetic side (the "rest and digest" side) does the opposite, and the vagus nerve is its main wiring.
Breathing out slowly stimulates that vagal pathway. Each long exhale gently slows the heart, and over a few minutes the body reads the pattern as a signal that nothing urgent is happening. Researchers describe this as increasing "vagal tone". In plain terms: a long, unhurried out-breath is one of the body's own off-switches, and you can press it deliberately.
A 2018 systematic review by Zaccaro and colleagues found that slow breathing (roughly six breaths a minute) is consistently associated with increased heart-rate variability and reports of relaxation and reduced anxiety. That is good evidence that slow breathing changes the body's state. Evidence that any particular breathing pattern reliably shortens the time it takes to fall asleep is thinner, and we say so honestly under each technique.
In short: A slower breath with a longer exhale tells the nervous system to stand down. The specific counts matter much less than keeping it slow, gentle and unforced.
Before you start: three rules that apply to every technique
- Never strain. If a count feels too long, shorten it. A breathing exercise that leaves you gasping is doing the opposite of its job.
- Breathe low, not high. Let the belly rise before the chest. Shoulders stay down. This is what people mean by deep breathing for sleep: deep in the sense of low, not big.
- If you feel dizzy, tingly or light-headed, stop and breathe normally. This usually happens when you breathe in too much or hold for too long. It passes within a minute and is a sign to use gentler counts, not a sign to push through.
Technique 1: Belly breathing (the foundation)
This is the one to learn first. Every other technique assumes you can do it.
- Lie on your back, or on your side with your top knee bent if that is how you sleep. Put one hand on your chest and one just below your ribs.
- Breathe in slowly through your nose for a count of four. Aim for the lower hand to rise and the upper hand to stay almost still.
- Breathe out through your nose or softly parted lips for a count of five or six. Let the belly fall on its own; do not push it.
- Pause for a beat at the bottom of the out-breath, then let the next in-breath begin by itself.
- Continue for about five minutes, or roughly thirty breaths.
What to notice: the hand on your belly moving more than the hand on your chest, and a natural settling of the pace after the first minute. If your mind wanders, which it will, notice where it went, and bring attention back to the hand on your belly. That return is the exercise, not a failure of it.
Technique 2: Extended exhale (4-6 breathing)
Once belly breathing is comfortable, this is the version we would suggest for most nights. It is the simplest pattern with the longest out-breath, and it has no holds, so it suits almost everyone.
- Settle into belly breathing.
- Breathe in through your nose for four.
- Breathe out for six, keeping the exhale smooth from start to finish rather than letting it all go in the first second. Some people find it helps to breathe out through slightly pursed lips, as if cooling a spoonful of soup.
- Repeat for ten breaths, then stop counting and let the breath carry on at whatever slow pace it has found.
- If sleep has not arrived, start another ten counted breaths.
Over time you may find you can stretch to a five-in, seven-out pattern. Only lengthen if it stays effortless.
Technique 3: 4-7-8 breathing
This is the best-known pattern online, popularised by the American doctor Andrew Weil and drawn from yogic breathing practices. It adds a hold after the in-breath.
- Rest the tip of your tongue against the ridge behind your top front teeth.
- Breathe out fully through your mouth with a soft whoosh.
- Close your mouth and breathe in quietly through your nose for a count of four.
- Hold your breath for a count of seven.
- Breathe out through your mouth for a count of eight, with the same soft sound.
- That is one cycle. Do four cycles to begin with.
The counts are ratios, not seconds. If seven feels long, count faster; the point is that the out-breath is twice the length of the in-breath. There is little direct research on 4-7-8 specifically, and the hold can make some people light-headed, so it is not our first choice for beginners or for anyone who feels anxious about breath-holding. Our full guide to 4-7-8 breathing covers the technique, its origins and the evidence in more detail.
Technique 4: Box breathing (4-4-4-4)
Box breathing gives the mind more to do, which some people find easier than a plain slow breath. It is popular for daytime stress as well as bedtime.
- Breathe in through your nose for four.
- Hold for four.
- Breathe out for four.
- Hold with the lungs empty for four.
- Picture each side of a square as you go, or simply count. Do six to ten rounds.
Because the in-breath and out-breath are equal, box breathing leans less on the calming exhale than the other patterns here; its strength is the structure. We cover it fully, including when it is not a good fit, in the box breathing guide.
Technique 5: Breath counting
This is the least technical option and the one to use when counting seconds feels like effort. It works by giving the mind a light task rather than by changing the breath much at all.
- Breathe naturally, a touch slower than usual, without forcing any particular count.
- On each out-breath, count silently: one on the first, two on the second, up to ten.
- At ten, start again from one.
- If you lose your place, or realise you have reached fourteen, simply go back to one. Losing count is expected; it is not a mistake.
Breath counting pairs well with a wandering mind because there is always somewhere obvious to come back to. If thoughts are the main thing keeping you up, it may help to read about why thoughts race at night and combine breath counting with one of the techniques there.
How to choose
- You feel physically wound up, heart going, shoulders tight: start with belly breathing for two minutes, then extended exhale.
- Your mind is busy but your body is fine: breath counting, or box breathing if you want more structure.
- You want a fixed routine you can repeat every night: 4-7-8 or box breathing, because the counts make it feel like a ritual.
- You get light-headed or dislike holding your breath: extended exhale only. Skip the holds entirely.
- You have woken at 3am: extended exhale, gently, without checking the clock.
Whichever you pick, give it a fortnight of consistent evenings before judging it. The pattern gets more effective as it becomes familiar, because the body starts to associate the rhythm with winding down.
If you would rather follow a voice
Counting your own breath is not for everyone. Many people find it easier to follow a recorded voice or a paced-breathing sound, particularly when tired. The NHS Every Mind Matters pages include free short breathing exercises, and there are many recordings that simply say "in" and "out" at a slow rate.
If you listen in bed, comfort matters more than sound quality. Ordinary earbuds press into the ear when you lie on your side, and a phone speaker tends to pull your partner into your routine. Our guide to sleep headphones explains the options for side sleepers and how to avoid falling asleep with a cable around your neck.
For listening to paced breathing in bed
Flat, soft headphones make it practical to follow a breathing track lying on your side without disturbing anyone else.
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Headband sleep headphones
Example: SleepPhones; CozyPhones; Musicozy
Headband headphones put flat speakers inside a stretchy fabric band that doubles as a light-blocking eye cover for some people. Models are marketed as wired or Bluetooth, with the speakers usually removable so the band can be washed.
- Best for
- Side sleepers who want audio without anything inside the ear
- Key feature
- Thin, flat speakers inside a soft fabric headband
- Why it may help
- Ordinary earbuds press into the ear when you lie on your side. A headband keeps the speaker flat against the ear so you can listen to sleep sounds or guided relaxation comfortably.
- Worth knowing
- Audio quality is basic and bass-light; the band can feel warm in summer; battery life varies by model.
Small in-ear sleep earbuds
Example: Anker Soundcore Sleep series; Bose Sleepbuds (discontinued, second-hand only)
Sleep-specific earbuds are marketed as smaller and flatter than standard earbuds so that lying on a pillow does not push them into the ear. Some models are designed mainly for masking sounds via an app; check whether a model streams normal Bluetooth audio if that matters to you.
- Best for
- People who want noise masking and audio in a compact form
- Key feature
- Low-profile earbuds designed to sit flush with the ear
- Why it may help
- They combine some passive noise blocking with audio, which suits people who want both a plug and a sound in one device.
- Worth knowing
- Fit varies widely between ears; app dependence on some models; batteries degrade over time.
What breathing exercises cannot do
Slow breathing calms the body. It does not create sleep pressure, and it cannot override a body clock that is not ready for sleep. If you go to bed at ten but your body thinks it is eight, no breathing pattern will change that; our guide on what to do when you cannot sleep covers the broader steps.
Nor are they a treatment for persistent insomnia on their own. Relaxation training is a recognised component of cognitive behavioural therapy for insomnia (CBT-I), the recommended first-line approach, but it works best alongside the other parts: a regular wake time, being in bed only when sleepy, and getting up if you are lying awake for long stretches. If poor sleep has lasted more than a few weeks and is affecting your days, it is worth reading about when to see a GP about sleep.
Tonight's version
Lights off. One hand on your belly. Breathe in through your nose for four, out for six, ten times. Then stop counting and let the breath do what it likes. If your mind drifts off to tomorrow, come back to the hand on your belly. If you feel dizzy, breathe normally for a minute and then use shorter counts. That is it. Do the same tomorrow, and the night after, and let the habit do the rest.
Frequently asked questions
How long should I do breathing exercises before sleep?
Five to ten minutes is plenty for most people, and a couple of minutes is better than nothing. Stop when you feel heavier and less alert rather than pushing on to a set number. If you are still wide awake after fifteen minutes, that is a sign to change approach rather than breathe harder.
Should I breathe through my nose or my mouth?
Nose in, and either nose or gently pursed lips out. Nasal breathing tends to be slower and quieter, which helps. If your nose is blocked, breathe however is comfortable; the slow pace and the long out-breath matter far more than the route.
Can breathing exercises make anxiety worse?
For a minority of people, paying close attention to the breath feels unsettling at first, and long holds can bring on light-headedness. If that happens, drop the holds, shorten the counts, or switch to something that puts attention elsewhere, such as a body scan or muscle relaxation.
Sources and further reading
- NHS: Breathing exercises for stress
- NHS: Insomnia
- Frontiers in Human Neuroscience: How Breath-Control Can Change Your Life: A Systematic Review on Psycho-Physiological Correlates of Slow Breathing (Zaccaro et al., Frontiers in Human Neuroscience, 2018)
- Sleep Foundation: Relaxation exercises to help fall asleep
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Written and reviewed by the Quiet Mind Sleep editorial team in line with our editorial policy. Spotted an error? Let us know.
