Imagine a practice you do lying down, with your eyes closed, where the whole point is to relax more deeply than you ever have, and you come out of it feeling like you slept for hours. That's yoga nidra, and it might be the most underrated tool in all of meditation.
What yoga nidra is
Yoga nidra means “yogic sleep.” It's a guided practice that takes you to the threshold of sleep, into the slow alpha and theta rhythms of the hypnagogic state, while a thread of awareness stays switched on. The body sleeps. The mind watches.
Its roots go deep into the tantric traditions of India. In the 1960s and 70s, Swami Satyananda Saraswati of the Bihar School of Yoga shaped it into the structured practice taught around the world today, and described it in his book Yoga Nidra.
The stages of the practice
- Settling
- Lying down, getting comfortable, becoming aware of sounds and the body.
- Sankalpa
- A short, positive resolve, stated silently in the present tense: I am calm and whole.
- Rotation of awareness
- Attention moves quickly around the body, part by part: right thumb, index finger, middle finger…
- Breath
- Counting or feeling the breath, slow and effortless.
- Opposites
- Feeling pairs of sensations: heaviness and lightness, warmth and coolness.
- Imagery
- A sequence of images passes through the mind: a candle, a sunrise, an ocean.
- Sankalpa and return
- The resolve is repeated, then awareness slowly returns to the room.
The sankalpa is planted at the edge of sleep, where the mind is most receptive. It's intention, whispered to the subconscious.
NSDR: the modern name
Stanford neuroscientist Andrew Huberman introduced millions of people to this kind of practice under a new name: NSDR, or non-sleep deep rest. On his podcast he describes using it daily to restore focus and energy, to recover from a short night, and to help the brain lock in new learning.
He often points to a striking finding. In a 2002 study, Danish researchers used PET brain imaging during yoga nidra and measured a 65% increase in dopamine release in the striatum, a key part of the brain's reward and motivation system. Participants reported a reduced desire to act combined with a vivid, relaxed awareness: deep rest with the lights still on.
A 20-minute NSDR
- Lie on your back with a pillow under your knees. Close your eyes. Let your arms rest a little away from your body.
- Silently set your sankalpa, one short sentence in the present tense.
- Take a few long breaths, making each out-breath longer than the in-breath.
- Move your attention slowly through the body: right hand, arm, shoulder, side, leg, foot. Then the left side. Then the back, the front, the face.
- Feel your whole body at once, heavy and still. Let the breath breathe itself.
- Notice sensations of heaviness, then lightness. Warmth, then coolness.
- Repeat your sankalpa. Then slowly wiggle your fingers and toes, and open your eyes.
When to use it
- The afternoon slump. Twenty minutes of NSDR instead of a third coffee.
- After a short night. Many people use it to recover some of what they missed.
- After learning something new. Rest helps the brain consolidate.
- When you can't sit. It's done lying down, so it's perfect for tired bodies and busy minds.