El yoga nidra es una práctica guiada que se realiza tumbado, a menudo llamada descanso profundo sin sueño o NSDR. Una voz grabada te lleva por un lento escaneo corporal mientras descansas al borde del sueño. La gente lo usa para relajarse, para conciliar el sueño con más facilidad y para sentirse restablecida durante el día. La evidencia más clara es para menos estrés, ansiedad y ánimo bajo: muchos ensayos pequeños muestran que una práctica regular produce una mejora de moderada a grande. Esos ensayos son preliminares, así que espera un efecto menor en la práctica.
Para el sueño la evidencia es aún más escasa. Una cuidadosa combinación de ensayos aleatorizados no alcanzó significación estadística, y los estudios no controlados que parecen más fuertes carecen de un grupo de control. No cuesta nada, solo necesita una grabación gratuita y un lugar donde tumbarse, y sientes el descanso la primera vez que lo haces. Empieza con una pista guiada corta la mayoría de los días, y dale a los efectos sobre el sueño y el ánimo unas pocas semanas. Mantén cualquier tratamiento prescrito en su sitio.
Findings & Outcomes
What It Is
Yoga nidra means "yogic sleep." It is a guided practice you do lying down, eyes closed. A recorded or in-person voice moves your attention slowly around the body and through the breath, sometimes with images and a short personal intention. You stay awake, or nearly so, resting at the threshold between waking and sleep without falling in. A session runs from about 10 to 40 minutes. The same practice, stripped of its yogic framing and set to a plain script, is what many now call non-sleep deep rest, or NSDR. The label and the script change; the underlying technique stays the same, a guided body scan done lying still. NSDR and yoga nidra draw on the same small set of trials, so neither name is better studied than the other. A free recording is all the practice requires.
What It Does
One review pooled 73 studies of 5,201 people. Yoga nidra lowered stress, anxiety and low mood by a moderate to large amount when compared against another active practice. Against doing nothing at all, the drop was even larger. Cortisol, the main stress hormone, normally falls from a morning peak to a nighttime low. Regular practice lowered the daily total and made that fall sharper, a measurable sign of a calmer stress response.
Those numbers overstate what most people will feel. The trials were mostly small, short, run in India, and hard to blind, so reviewers judged the quality low and the effect sizes likely inflated. The most rigorous trial so far, 362 adults practicing online for two months, compared yoga nidra against listening to music rather than a do-nothing group. An 11-minute track beat a waiting list only slightly. Compared against 10 minutes of music, it did only slightly better at lifting low mood.
The sleep evidence is weaker, and it splits by how sleep was measured:
- Subjective sleep quality: a 2026 review that combined the randomized trials found a big-looking improvement, but one that could still be down to chance, resting on very weak evidence. Uncontrolled studies looked stronger, the pattern you expect with no control group.
- Objective sleep: in 41 novices monitored overnight after four weeks, sleep efficiency (the share of time in bed spent asleep) rose about 3.6%. Time awake after falling asleep dropped about 20 minutes, with more deep-sleep brain activity. With no control group, expectation and simply lying down cannot be separated out.
- In a sleep lab: a small randomized study of 22 adults with insomnia found no change in sleep-onset EEG, heart rate variability, or how fast people fell asleep. The one clear physiological change was slower breathing, about 1.4 to 2.1 breaths per minute.
In a pooled analysis, yoga nidra also reduced pain, but only when it was compared against doing nothing, not against another active practice. It has been tested as an add-on for stressed healthcare workers, menstrual complaints, and post-COVID recovery, all in small trials. For depression and anxiety, the trials add it to existing treatment.
The Research & Studies
Everything here is based on the research we have collected and checked, sorted into groups and ordered with the strongest evidence first. Click any claim to open the studies behind it.
Mood & stress
El estrés, la ansiedad y el ánimo bajo caen en una cantidad de moderada a grande, con evidencia de baja calidad probablemente inflada
Al combinar muchos estudios pequeños, el yoga nidra alivió el estrés, la ansiedad y el ánimo bajo en una cantidad de moderada a grande. Quienes dirigieron la revisión advirtieron que los estudios eran de baja calidad, por lo que el efecto real probablemente es menor que estas cifras.
Una búsqueda en siete bases de datos arrojó 73 estudios (5201 participantes). Los efectos entre grupos frente a un comparador activo fueron estrés g -0.80, ansiedad g -1.35, y depresión g -0.69; frente a ningún comparador fueron mayores (-1.70, -1.43, -0.92). Los análisis dentro del grupo coincidieron. Los autores concluyeron que la práctica muestra potencial pero que la baja calidad metodológica y la administración variable significan que los efectos de moderados a grandes probablemente reflejan estimaciones infladas.
The study · 1
Ghai et al., Yoga Nidra on stress, anxiety, and depression, a systematic review and meta-analysis · Ann N Y Acad Sci 2026;1556(1):e70149
En el ensayo más riguroso, los beneficios fueron pequeños una vez comparados frente a música o una lista de espera, con una caída medible en el cortisol diario
En el ensayo mejor diseñado, el yoga nidra ayudó solo un poco una vez que se comparó frente a escuchar música, no frente a no hacer nada. Las personas que practicaron regularmente sí mostraron niveles diarios más bajos de la hormona del estrés, un signo biológico real de una fisiología más calmada.
Los participantes fueron asignados aleatoriamente a yoga nidra de 11 minutos (n=101), yoga nidra de 30 minutos (n=80), 10 minutos de música (n=74), o una lista de espera (n=107), practicando en línea durante dos meses. La forma corta superó a la lista de espera por d de 0.08 a 0.16 en bienestar, estrés, sueño y ánimo, y superó a la música para la depresión por d 0.13. La práctica regular bajó el cortisol total y acentuó la pendiente diurna; la forma larga aplanó aún más la reacción del cortisol al despertar.
The study · 1
Moszeik et al., an online Yoga Nidra meditation on subjective well-being and diurnal salivary cortisol, a randomised controlled trial · Stress Health 2025;41(3):e70049
In a small randomized trial of frontline healthcare workers, yoga nidra beat relaxation music for depression, anxiety and insomnia symptoms
In a small trial of exhausted healthcare workers during the pandemic, a daily yoga nidra practice lowered depression, anxiety and insomnia scores more than listening to relaxation music did.
Seventy-nine workers were randomized to relaxation music (n=40) or yoga nidra (n=39), both delivered via YouTube for 30 minutes daily across two-week duty periods. Yoga nidra significantly reduced PHQ-9 (p=0.002), GAD-7 (p<0.001) and ISI (p<0.001), while the music group did not reach significance on any measure. It was a pilot trial and the authors called for larger studies.
The study · 1
Gunjiganvi et al., Yoga Nidra on depression, anxiety, and insomnia in frontline COVID-19 healthcare workers, a pilot randomized controlled trial · Int J Yoga Therap 2023;33:Article 3
Sleep
Pooled randomized trials for sleep quality did not reach statistical significance, on very low certainty evidence
When researchers pooled the randomized sleep trials, the improvement in sleep quality was not statistically reliable, and the overall certainty was very low. Studies without a control group looked better, which is what usually happens when there is nothing to compare against.
The review (PROSPERO CRD420251114346) searched to March 2025 and found few eligible trials. For PSQI, two RCTs (n=181) gave SMD -1.04, p=0.50; two observational studies (n=45) gave SMD -1.82, p=0.03. For ISI, two RCTs (n=99) gave SMD -1.00, p=0.06. The authors concluded that very low certainty means the findings should be read as preliminary, with generalizability limited by trials concentrated in India.
The study · 1
Singh et al., yoga Nidra in sleep disturbances and insomnia, systematic review and meta-analysis · Sleep Breath 2026;30(2):144
Overnight monitoring showed less time awake after falling asleep and higher sleep efficiency, in an uncontrolled study
In 41 people new to the practice, overnight brain and sleep monitoring after four weeks showed they spent about 20 minutes less awake after falling asleep and slept more efficiently. Because there was no comparison group, part of this could be from expectation, not the practice itself.
Participants completed baseline sleep diaries, overnight polysomnography, and a cognition battery, repeated after one, two and four weeks of practice. Sleep efficiency improved +3.62%, wake after sleep onset dropped about 20 minutes (d=0.84), and delta power during deep sleep increased +4.19 microvolts squared. The objective sleep gains were consistent but uncontrolled.
The study · 1
Datta et al., improved sleep, cognitive processing and enhanced learning and memory task accuracy with Yoga nidra practice in novices · PLoS One 2023;18(12):e0294678
Counts once: this finding and 1 other here come from the same source, so they are one body of evidence, not separate confirmations.
A sleep-lab randomized study found no change in sleep-onset EEG, heart rate variability, or how fast people fell asleep
In a careful sleep-lab study, a single yoga nidra session did not change the brain-wave, heart-rhythm, or fall-asleep-speed measures the researchers expected. The clear change it did produce was slower breathing.
Twenty-two adults with self-reported insomnia attended two visits; at the second, half were randomized to 30 minutes of yoga nidra. There were no between-group changes in alpha EEG at O1, HRV, or sleep onset latency. Respiratory rate fell significantly (-1.4 bpm during, -2.1 bpm after, p=0.03 for both). The practice was well tolerated with 5% dropout, and slower breathing was flagged for confirmation in larger trials.
The study · 1
Sharpe et al., a closer look at yoga nidra, early randomized sleep lab investigations · J Psychosom Res 2023;166:111169
Cognition
Reaction times and accuracy on learning and memory tasks improved, in an uncontrolled study
The same 41 people also reacted faster and scored more accurately on memory and learning tasks after four weeks of practice. Because they took the same tests repeatedly and had no comparison group, some of this is likely practice on the tests themselves.
Alongside the sleep measures, the cognition battery showed faster reaction times on every task and higher accuracy on visual object learning (d=0.79), abstract matching (d=0.61) and the 2-back working-memory task (d=0.56). Emotion-recognition accuracy rose for happy, fear and anger stimuli. The authors read this as improved cognitive processing accompanying better sleep.
The study · 1
Datta et al., improved sleep, cognitive processing and enhanced learning and memory task accuracy with Yoga nidra practice in novices · PLoS One 2023;18(12):e0294678
Counts once: this finding and 1 other here come from the same source, so they are one body of evidence, not separate confirmations.
Pain
Pain fell versus a passive comparator but not versus another active practice, on low-quality evidence
Across a dozen studies, yoga nidra lowered pain compared with doing nothing, but not compared with another active practice. That pattern, plus low study quality, means the pain benefit is preliminary.
Twelve studies (1,176 participants) were pooled. Between-group pain reduction versus passive comparators was g -2.05 (p=0.01); versus active comparators it was g -0.31 (p=0.53), not significant. Within-group reduction was g -2.01 (p<0.001). Meta-regression found no dose-response across single versus multiple sessions or intervention duration, and the authors cautioned the low-quality evidence likely inflates the effect.
The study · 1
Ghai and Ghai, Yoga Nidra and pain, a meta-analysis and dose response meta-regression · Complement Med Res 2025;32(6):495-521
How It Works
Resting attention on physical sensation tends to slow and deepen the breath, and it shifts the autonomic nervous system toward its resting, parasympathetic side. That slower breathing, the single effect a randomized trial confirmed, is the same mechanism behind slow breathing practices. The same calmer state shows in the stress response as the lower, steeper cortisol curve measured in a few studies.
How large the effect looks depends on the comparison. Measured against a waiting list, which controls for nothing, yoga nidra looks powerful.
Measured against a practice that also asks you to lie down and give it time, the trial of 362 adults found only a small benefit.
How to Start
Ways to Do It
Yoga nidra costs nothing beyond a place to lie down. Lie down somewhere warm and quiet where you will not be disturbed, on your back with support under the knees if that is comfortable. Follow a recording so the voice does the guiding while you rest.
Search for a yoga nidra or NSDR recording of about 10 to 20 minutes and follow it lying down. A short daily track is the dose most of the trials used. Falling asleep during it is common and harmless when the goal is rest or sleep. If the goal is daytime restoration, a shorter track keeps you from dropping fully asleep.
Once the short version feels familiar, a 30 to 40 minute track goes through a fuller body scan, breath awareness, and a brief personal intention. This is closer to the traditional form. Most trials ran about eight weeks, so give a regular practice that long before judging its effect on mood and sleep.
A local class or teacher adds live guidance and a set time to practice; a subscription app gives you a large library of tracks and structure. Both are convenient options.
Go Deeper
- Meditation and mindfulness: the better-studied attention practice, similar in modest size, with the strongest evidence for preventing depression relapse.
- Breathwork and HRV: the slow-breathing practice with the most direct physiological mechanism, and the one to reach for when you want on-the-spot calm.
- The sleep environment: the room changes that carry most of the benefit for falling asleep, worth pairing with a bedtime rest practice.
- The stress axis: the cortisol biology that stress, anxiety and these calming practices act on.
Cautions For This Practice
Everything to be aware of is here, in one place. This practice suits most healthy people; a few situations call for real care.
It is not a treatment for a sleep disorder
Yoga nidra is a rest practice. It does not treat insomnia, sleep apnea, restless legs, or other sleep disorders. Longstanding sleep trouble, heavy snoring or pauses in breathing at night, or daytime exhaustion despite time in bed all point to a condition the practice will not fix. The best-evidenced treatment for chronic insomnia is cognitive behavioral therapy for insomnia.
Some people find turning attention inward distressing
Some people, especially those with a history of trauma, panic, or dissociation, find this hard. Lying still with eyes closed and attention turned inward can bring up anxiety, intrusive memories, or a feeling of being detached from the body. This is a recognized reason some find guided imagery and body scans uncomfortable. If that happens, keep sessions short, sit up instead of lying down, keep your eyes open, and use a trauma-sensitive recording or a guided setting. Stop if it consistently leaves you worse.
Do not do it while driving or where falling asleep is a hazard
The practice is designed to bring you to the edge of sleep, and many people fall asleep during it. Only do it somewhere it is safe to drift off. Never use a yoga nidra or NSDR track while driving or operating machinery.
Keep prescribed care in place
For diagnosed depression or an anxiety disorder, yoga nidra is studied as something added to treatment. Keep any prescribed care in place and treat the practice as one calming habit alongside it. Speak with whoever manages your care before changing anything.
Start slow, be smart, read the research, and consult a professional if you have any concerns. This is here to inform your choice, not make it for you.
Explore Related
Other pages this one connects to, by the evidence they share, the outcomes they touch, and the ground they cover.
All 8 sources on this page independently checked and cross-referenced.
Thomas Dehli, Founder & Editor, Sacred Lotus
Sacred Lotus has published Chinese medicine reference material since 2001. Integrative pages are held to the same standard as the herb and formula library: cite the source, grade the claim at its real strength, and say where the research has not looked. This page is educational and it is not medical advice. Last reviewed and updated August 10, 2026.
Evidence strength
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