Yoga guide
Yoga nidra, or yogic sleep, is a guided relaxation you do lying still. A teacher or a recording takes you through a short resolve, a slow tour of the body, the breath, opposite sensations and calm images, then back to the room. Swami Satyananda Saraswati of the Bihar School of Yoga set out the method in a book in 1976, and iRest (Integrative Restoration) and non-sleep deep rest are modern versions.
It may ease stress a little and help some people sleep, but most studies are small and weak, the largest trial found small effects, and no study shows it can replace sleep. It's usually gentle, though guided relaxation can bring up distress for some people, especially after trauma.
This guide covers what yoga nidra is and where it comes from, a script to follow for 10, 20 or 30 minutes, what the trials found for stress, anxiety, sleep and pain, the claim that an hour of it equals four hours of sleep, trauma and post-traumatic stress disorder (PTSD), and when to get help.
A teacher or recording takes you through a set sequence: a short resolve, moving your attention around the body, watching the breath, opposite sensations, images, the resolve again and a slow return. Swami Satyananda set out its seven parts in 1976; the word itself is much older.
A 2026 review of 73 studies found large effects on stress, anxiety and low mood, but most studies were weak and the authors say the effects are likely inflated. In the largest trial, 362 adults who listened to an 11 or 30 minute recording for 2 months had small improvements.
Pooled trials of sleep quality and insomnia were very low certainty and didn't reach statistical significance. In 144 people with heart disease, 12 weeks of sessions improved sleep measured with a wrist monitor. For insomnia that lasts, see a GP, who may offer cognitive behavioural therapy (CBT).
No study supports the popular claim that an hour of yoga nidra equals about four hours of sleep: a 2022 review traces it to a 2013 handbook. When novices practised in a sleep laboratory, their brain recordings showed them awake throughout.
Guided relaxation can bring up anxiety or painful memories, and the NHS says mindfulness makes some people feel worse. With PTSD, use yoga nidra alongside trauma-focused therapy, not instead of it.
You lie on your back, usually in corpse pose with your eyes closed, and follow spoken instructions. A 2026 review describes a guided practice in seven steps that aims for a state between waking and sleep. Sessions usually last 30 minutes to an hour, a 2022 review says; trials have used 11 to 35 minutes.
The seven parts, as Swami Satyananda set them out:
In ancient Indian texts, yoganidra meant the god Vishnu's sleep and, later, a deep meditative absorption called samadhi. A history of the texts says Satyananda built his method from older tantric practices, and that its resolve stage looks borrowed from Western relaxation therapies. His book came out in 1976, though one review dates his writings on it to the 1960s.
Satyananda's version is a guided script that tells you what to notice. In another tradition, yoga nidra means a trained state of deep sleep with awareness kept, reached after years of practice. Researchers warn that many studies use the name for general relaxation and guided imagery.
iRest (Integrative Restoration), developed by Richard Miller, calls itself a contemporary adaptation of yoga nidra that combines yogic practice with Western psychology. It has 10 steps, starting with a heartfelt desire, an intention and an inner resource (a place in the body that feels safe), and its site says the first 5 steps are usually enough for beginners. Where classical versions tell you what to perceive, iRest asks you to explore your own experience.
Non-sleep deep rest (NSDR) is a short, secular recording, usually 10 to 20 minutes, that borrows yoga nidra's body scan and breathing but not its resolve or imagery. It's a related but different practice, so we don't count its trials as yoga nidra evidence.
It comes from yoga's spiritual tradition, as a way of withdrawing the senses, one of yoga's eight limbs. Satyananda's imagery includes temples, saints and other religious symbols, while researchers and iRest have made versions without religious content. Choose a teacher or recording whose language suits you.
In 30 novices, brain recordings showed them awake throughout a session, with patches of slow waves in some areas. In 22 adults with insomnia, 30 minutes of yoga nidra didn't change brain waves, heart rate variability or the time it took to fall asleep compared with lying quietly, though breathing slowed.
Two small brain-scan studies in experienced practitioners, from 1999 and 2002, found changes in blood flow and a rise in dopamine release in one brain area. They're interesting, but they don't show health benefits.
Yoganidrasana, the yogic sleep pose, is a posture with the legs wrapped behind the neck, named in a 17th-century text. It has nothing to do with the guided relaxation, which is done lying in corpse pose.
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The steps follow Satyananda's seven parts (Birch and Hargreaves 2015; Pandi-Perumal 2022), with trauma-informed choices from Luu 2024. For 10 minutes, keep steps 3 and 4 short and leave out steps 5 and 6, like the 11-minute recording in Moszeik 2025; for 30 minutes, lengthen steps 3, 4 and 6. The timings and the example order are our editorial suggestion.
See the movement on the 3D figure: Corpse pose (Savasana)
A 2026 review pooled 73 studies with 5,201 people and found large effects on stress, anxiety and depression. But only 22 studies were randomised trials, and 17 of those were at high risk of bias, mostly because people rated their own symptoms knowing which group they were in. The authors say the effects likely reflect inflated estimates and that yoga nidra should be an add-on to established treatment, not a replacement. Only 2 studies each were in people diagnosed with an anxiety or depressive disorder.
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In Germany, 362 adults (81% women) listened online to an 11 or 30 minute recording, ideally every day for 2 months, or to music, or waited. Compared with waiting, the effects on stress, anxiety, low mood, rumination and sleep disturbance were small: at most about a fifth of a standard deviation, which researchers count as a small effect (an effect size of 0.19 for stress with the 30-minute recording). Most of the change lasted to the 3-month follow-up. Compared with music, only low mood differed, and the longer recording wasn't clearly better than the shorter one.
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A 2026 meta-analysis found only 2 trials each on sleep quality and insomnia; neither pooled result was statistically significant, and the certainty was very low. A review of 6 small trials found most reported better sleep, at moderate to high risk of bias.
In 41 people with chronic insomnia, yoga nidra and CBT for insomnia both improved sleep; yoga nidra wasn't shown to be better. In 41 novices, 4 weeks of practice was followed by a little more of the night spent asleep and about 20 minutes less time awake after first falling asleep, in a study without a comparison group.
In 144 people with heart disease (89% men), 35-minute sessions over 12 weeks plus sleep advice were compared with advice alone. At 12 weeks, on a wrist monitor, the yoga nidra group spent 82% of their time in bed asleep, against 64% with advice alone, in an open trial registered after it started. In a sleep laboratory, one 30-minute session didn't help 22 people with insomnia fall asleep faster.
After hospital care for COVID-19, 30 minutes a day of yoga nidra or music both did better than usual care in 90 people, and music helped sleep quality more. In 23 people with chronic pain, one session of yoga nidra or a body scan eased pain equally. In 50 people with functional seizures, adding a yoga nidra recording did no better than a sham recording at 6 months.
Other small trials, in health workers, students and people having cancer treatment, reported benefits.
Across 12 studies of pain (1,176 people), yoga nidra beat no treatment by an implausibly large amount in low-quality studies and made no clear difference against other active treatments. Blood pressure reviews report falls, about 12 mmHg in the top number in one review of 482 people, but from studies at high risk of bias.
The National Institute for Health and Care Excellence (NICE) removed relaxation therapies from its high blood pressure guidance because there was less evidence for them than for other lifestyle changes or medicines, while saying people can still try them. Our exercise for high blood pressure guide covers what helps.
One 2002 brain-scan study estimated a 65% rise in dopamine release in one brain area during yoga nidra in experienced practitioners. Cortisol, a stress hormone, changed a little in two trials. Each finding comes from a single study, so they don't show health effects.
Most trials were in India. In the 73-study review, 1,580 women and 741 men took part among those whose sex was reported (68% women), and more than a quarter of studies didn't say whether an instructor was present. An earlier review of 29 studies found yoga nidra helped in most, but they were too varied to draw firm conclusions.
A 2022 review reports the claim that 1 hour of yoga nidra equals about 4 hours of sleep and traces it to a 2013 handbook. The same review says practitioners themselves don't see it as a substitute for sleep. No study has measured it.
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In novices, brain recordings showed wakefulness through the session, with slow waves in some areas, sometimes called local sleep. The trials added yoga nidra to normal sleep and measured stress or sleep quality; none tested it as a replacement.
In a related but different practice, a 10-minute non-sleep deep rest recording, 60 active young adults were given that recording, a 25-minute nap or neither. Forty minutes later, the nap group felt less tired and more ready to perform, and the recording made no measurable difference. In another trial, the same kind of recording gave 102 young adults small, short-lived gains in how rested they felt.
Use yoga nidra as rest, not as a replacement for sleep. If you're short of sleep, a short nap did more in the one trial that compared them. If poor sleep lasts for months, see a GP: the NHS route is CBT for insomnia, and GPs now rarely prescribe sleeping pills.
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iRest's own site says it has been shown to resolve symptoms of PTSD, without naming trials, and that the US Army Surgeon General once endorsed it. The published studies are small: a qualitative study of 16 male combat veterans, of whom 11 finished and described less rage and anxiety despite intrusive memories, and a study without a control group in which 10 women veterans with sexual trauma reported fewer PTSD symptoms.
In 30 older adults, an iRest retreat and 6 weeks of home practice improved sleep compared with a holiday-style retreat. A year later, the iRest group was no better off, and the holiday group had better mood and less stress.
NICE recommends trauma-focused CBT and eye movement desensitisation and reprocessing (EMDR) for adults with PTSD; yoga isn't among its recommendations. The US National Center for Complementary and Integrative Health (NCCIH) says the evidence for yoga in PTSD is only low quality. Our exercise for PTSD guide covers trauma-sensitive yoga as an add-on.
An expert review warns that yoga nidra can re-traumatise if it isn't delivered with care, with overwhelming flashbacks, emotional distress and long-lasting dissociation reported. The 2026 review adds that because the practice involves images, memories and emotions, poor guidance could do harm.
The same expert review lists ten parts of a trauma-informed practice:
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Our suggestion, in line with our trauma-sensitive yoga advice: keep your eyes open or lowered, sit up if lying down feels unsafe, skip any part that doesn't feel right, and stop if distress rises. Use yoga nidra alongside trauma-focused therapy, not instead of it.
Across 83 studies of meditation, about 8% of people reported an adverse effect, most often anxiety or low mood, sometimes in people with no history of mental health problems. After an 8-week mindfulness course, 6% to 14% had lasting bad effects. In a US survey of 434 people who had meditated, about a third reported an adverse effect, with traumatic memories resurfacing among the commonest, and childhood adversity raised the risk. The NHS says mindfulness isn't right for everyone and can make some people feel worse.
These are our suggestions, with the sources named.
Trials used sessions of 11 to 35 minutes, daily or on most days, for 2 weeks to 3 months: 11 or 30 minute recordings daily for 2 months; 35-minute sessions about twice a week for 12 weeks, with recordings in between; and 30 minutes a day for 30 days. Across 73 studies, the median total was 750 minutes.
Our editorial starting point is 10 to 20 minutes, lying down or sitting, on 3 or more days a week, for 4 to 8 weeks before deciding whether it helps. That's within the range used in trials. At bedtime, falling asleep is fine, and trauma-informed teachers give permission to sleep; as a daytime practice, the classical aim is to stay awake.
Lie in corpse pose, or rest in reclining bound angle or sit up, for the length of the recording, settling first with a few minutes of slow breathing or legs up the wall if you like (skip legs up the wall in later pregnancy, and with glaucoma ask your eye doctor first).
3D demoCorpse pose (Savasana)Beginner · No equipment
3D demoReclining bound angle pose (Supta Baddha Konasana)Beginner · Firm cushion
3D demoEasy pose (Sukhasana)Beginner · No equipment
3D demoSlow breathing (6 breaths a minute)Beginner · No equipment
3D demoLegs up the wall (Viparita Karani)Beginner · A wallGentle routines to do before a session, or instead of one if lying still doesn't suit you. Both yin sessions end with a long rest in corpse pose.
A slow, 10-minute floor routine to unwind before sleep: child's pose, twists, happy baby and slow breathing.
10 minBeginner7 movesFirm cushion, A wallA 6-minute breathing routine: slow breathing, crocodile breathing, alternate nostril breathing, box breathing and 4-7-8 breathing.
6 minBeginner5 movesNo equipmentA 35-minute yin-style session: seated and lying poses held for 2 to 4 minutes with slow breathing, finishing with legs up the wall and a long rest.
35 minBeginner9 movesA wallA 60-minute yin yoga class: seated and lying poses held for about 3 minutes each with slow breathing, hips and spine first, finishing with a long rest.
60 minIntermediate13 movesA wallA gentle 20-minute yoga practice, sitting and standing with your eyes open, where every pose is optional and you can stop at any point.
20 minBeginner11 movesA bench or boxA 12-minute reset for stressful days: 4 minutes of brisk movement, 3 minutes to loosen your neck, shoulders and back, then 5 minutes of slow breathing.
12 minBeginner10 movesA bench or box, A wallThe NHS says a mental health emergency should be taken as seriously as a physical one.
It brings on flashbacks, panic, strong distress, or a feeling of being detached or unreal. Open your eyes, sit up, put your feet on the floor and look around the room, and tell your therapist or GP if it happens again.
You've had trouble sleeping for months, changing your sleep habits hasn't helped, or poor sleep is making it hard to cope with daily life. GPs may offer CBT for insomnia, and now rarely prescribe sleeping pills. See a GP, too, if low mood or anxiety is affecting your daily life.
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In England, Op COURAGE is the NHS mental health service for veterans, service leavers and reservists. You can contact it yourself, or ask your GP or a charity to refer you.
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No study supports it, including the popular claim that an hour equals about four hours of sleep, which a 2022 review traces to a 2013 handbook. Novices stay awake during practice, and the trials added yoga nidra to normal sleep; the largest found small effects.
In one trial, a 25-minute nap lowered tiredness and a 10-minute recording didn't; in another, a recording gave small, short-lived gains in how rested people felt.
The word is ancient, but the seven-part method was set out in 1976, and a history of the texts says its resolve stage looks borrowed from Western relaxation therapies.
That figure comes from one small 2002 brain-scan study in experienced practitioners. It hasn't been repeated, and it says nothing about health effects.
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Reviews report large effects from mostly weak studies, the largest trial found small effects, and pooled sleep trials were very low certainty.
Meditation practices cause side effects in a minority of people, sometimes lasting, and yoga nidra can bring up flashbacks and distress if it isn't taught with care.
The studies are a qualitative study of 16 veterans and a study of 10 women without a control group. NICE recommends trauma-focused therapies instead.
A guided relaxation, usually done lying on your back, in which a teacher or recording takes you through a resolve, a body scan, breath awareness, opposite sensations, images and a slow return. Swami Satyananda set out its seven parts in a 1976 book; the name, yogic sleep, is much older.
Lie comfortably, choose a short, positive resolve and repeat it three times, then move your attention around your body, watch your breath, notice opposites such as heavy and light, picture calm images, repeat the resolve and come back slowly. Our script has 10, 20 and 30 minute versions.
It may lower stress a little. Reviews report big effects, but mostly from weak studies, and the largest trial, of 362 people, found small ones. Treat it as a pleasant, low-risk extra, not a treatment.
Small trials suggest better sleep, including in people with heart disease, but pooled results are very low certainty. For insomnia that has lasted months, see a GP: CBT for insomnia is the usual treatment.
No. A 2022 review traces the four-hours claim to a 2013 handbook, not a study, and says practitioners don't see it as a substitute for sleep. People stay awake during practice, and the trials added it to normal sleep.
At bedtime, yes. Classical teaching aims to stay aware, and brain recordings show novices usually stay awake, but trauma-informed teachers give permission to sleep.
Trials used 11 to 35 minutes, daily or on most days, for 2 weeks to 3 months. Our editorial starting point is 10 to 20 minutes on 3 or more days a week.
No. Non-sleep deep rest is a short, secular recording that borrows yoga nidra's body scan and breathing but drops the resolve and imagery. It's a related but different practice, and its few trials found small or no effects.
Savasana, or corpse pose, is the lying posture; yoga nidra is a guided meditation done in it, and a body scan is one of its steps. In one small study, yoga nidra and a body scan eased pain equally.
It's usually gentle, but guided relaxation and meditation can bring up anxiety, painful memories or a detached feeling for some people. If that happens, open your eyes, sit up and stop, and get support if it keeps happening.
iRest (Integrative Restoration) is a 10-step version developed by Richard Miller. Its PTSD research is small and mostly without control groups, so use it only alongside trauma-focused therapy, which NICE recommends.
It comes from yoga's spiritual tradition, but secular versions exist, so choose a recording whose language suits you. Trials used lying down, but sitting works if lying still feels uncomfortable or unsafe.
Exercise education, not a personal prescription, and clinical review of these guides is pending. If you are pregnant, have a health condition such as glaucoma, high blood pressure or osteoporosis, or have had recent surgery, check with a doctor, midwife or physiotherapist before starting, and stop for sharp or increasing pain. Health disclaimer.
