Neuroscientist Andrew Huberman gave this state a modern name in 2022: Non-Sleep Deep Rest, or NSDR — a term for practices, yoga nidra included, that guide the brain into deep rest while you remain conscious. The practice itself is centuries old. The name is new. The relief it offers a racing mind at 11pm hasn't changed either way.
Here's what's actually happening in your nervous system during a session, and a 6-minute practice you can do tonight, wide awake, in bed.
Why It's Not Meditation Or Sleep
Most seated meditation asks something specific of you: sit up, hold your attention on one thing (breath, a mantra, a sound), and gently redirect it every time it wanders. That's a real skill, and for an anxious or overstimulated nervous system, it's also often the hardest possible entry point — you're asking a mind that already feels out of control to control itself.
Yoga Nidra removes that ask entirely. You lie down. You keep your eyes closed. Instead of holding attention still, a voice moves it for you — through the body, through breath, through simple visualization — so there's nothing to get right or wrong. Researchers studying the practice have found measurable EEG changes during a session, including increased delta activity (the slow-wave pattern associated with deep, restorative sleep) even while some regions of the brain stay responsive — a state researchers have described as "local sleep": parts of the brain resting, parts still listening.
The body doesn't need you to think your way calm. It needs the right physiological signal.
That's the mechanism behind Huberman's NSDR framing: your body gets rest signals close to what deep sleep provides, without you needing to actually lose consciousness to get them. It's the same nervous-system logic we talk about across Sōma — see our explainer on why you can't just "calm down" for the fuller picture of how the nervous system decides what's safe.
Why This Works When "Just Fall Asleep" Doesn't
If you've ever laid in bed trying to fall asleep, you already know the problem: trying is the enemy of sleep. The moment falling asleep becomes a task with a pass/fail outcome, your nervous system reads that pressure as one more thing to be alert about — which is the opposite of what you need at 11pm.
Yoga Nidra sidesteps that trap because falling asleep was never the goal. In a randomized controlled trial with chronic insomnia patients, a regular Yoga Nidra practice improved sleep outcomes and sleep architecture over the study period — not by forcing sleep onset, but by lowering the baseline activation that was keeping the nervous system too alert to let sleep happen naturally. In a much larger sample — 341 people practicing a short daily session over 30 days — the same pattern showed up: lower stress, better sleep quality, and higher well-being compared with a waitlist control group.
The common thread in both: nobody was told to try harder to sleep. They were told to lie down and follow a voice. The rest followed.
A 6-Minute Yoga Nidra Practice You Can Do Tonight
This is a compressed version of the guided session in the Sōma app, adapted so you can do it from memory, in the dark, without needing to look at anything.
Lie on your back if you can — bed, floor, wherever you already are. Let your arms rest slightly away from your body, palms up if that's comfortable. This isn't a stretch or a posture to hold correctly. You're not doing anything yet.
Silently name one simple, kind sentence to yourself — "I am allowed to rest," or just "rest now." Yoga Nidra traditionally opens with a sankalpa, a short intention, not as a manifestation exercise but as a way of telling your nervous system what this next stretch of time is for.
Without moving, move your attention slowly through each part of your body — right hand, right arm, shoulder, left hand, left arm, shoulder, and down through the torso, hips, legs, feet. You're not tensing or relaxing anything on purpose. You're just noticing, in order, the way a voice in a guided session would walk you through it. If your mind drifts off the sequence, that's not a failure of the practice — it's often the sign it's working.
Stop directing your breath. Just notice it: the pause at the top of an inhale, the slightly longer pause at the bottom of an exhale. It will slow by itself as your body registers there's nothing left to respond to.
For the last minute, don't try to do anything at all — not relax further, not notice more, not stay awake. If you drift into actual sleep, that's fine; that's not a failure, it's just your body deciding it had more to spend than the six minutes covered. If you stay in that half-aware, heavy-limbed state the whole time, that's the NSDR state doing its job.
Our full guided version of this — Yoga Nidra for deep sleep, 6 minutes, built for exactly this moment — is part of the Night Reset program in the Sōma app, for anyone who wants the voice doing the guiding instead of their own memory of these steps.
What This Practice Is Not
Yoga Nidra is not a treatment for a diagnosed sleep disorder, and it's not a substitute for the sleep hygiene basics — consistent bedtime, dark room, caffeine cutoff — that your nervous system still needs regardless of what practice you add on top.
It's also not a productivity hack in the "biohack your sleep debt" sense some corners of the internet frame NSDR as. The goal isn't to squeeze more out of less sleep — it's to give an overactive nervous system a real, physiological off-ramp before bed.
Frequently Asked Questions
Sources
Huberman, A. Stanford University. "Non-Sleep Deep Rest (NSDR)." Huberman Lab.
Moszeik, E. N., von Oertzen, T., & Renner, K. H. (2020). Effectiveness of a short Yoga Nidra meditation on stress, sleep, and well-being in a large and diverse sample. Current Psychology.
Datta, K., Tripathi, M., Verma, M., Masiwal, D., & Mallick, H. N. (2021). Yoga nidra practice shows improvement in sleep in patients with chronic insomnia: A randomized controlled trial. National Medical Journal of India.
Datta, K., Mallick, H. N., Tripathi, M., Ahuja, N., & Deepak, K. K. (2022). Electrophysiological evidence of local sleep during yoga nidra practice. Frontiers in Neurology.
Porges, S. W. (2011). The Polyvagal Theory: Neurophysiological Foundations of Emotions, Attachment, Communication, and Self-regulation. W. W. Norton & Company.
Sōma's guided Yoga Nidra session walks you through the practice above out loud, so you don't have to hold the steps in memory while half-asleep.