Best NSDR app

NSDR stands for non-sleep deep rest. It is a guided practice that takes the body into a deeply restful state without sleeping, usually through a body scan, slow breathing, and a gentle lowering of attention. The framing was popularized by Andrew Huberman as a brain-friendly description of Yoga Nidra, which is its source tradition.

Functionally, yes. The protocols are the same: body scan, slow breath, hypnagogic boundary, gentle return. The names emphasize different lineages. Yoga Nidra has the older history and a deeper repertoire of techniques. NSDR is the modern, secular framing. Most NSDR scripts are Yoga Nidra scripts.

The evidence is real and it is thin, and all of it sits under the older name. One randomized trial of 41 adults with chronic insomnia set Yoga Nidra against CBT-I and found larger gains in deep sleep on polysomnography plus a drop in salivary cortisol. Around it sit a two-patient case report and a feasibility study in 16 combat veterans. Nothing has been trialled under the NSDR label.

Lie down somewhere you will not be interrupted, close your eyes, and let the exhale run longer than the inhale while attention moves slowly through the body, one part at a time. That sequence is most of what Yoga Nidra is, and it is what an NSDR recording talks you through. Falling asleep partway is common and not a failure, though it does end the resting-while-awake part.

It is the same practice. NSDR is the framing Andrew Huberman popularized for Yoga Nidra, and the 20-minute track in Stillee matches the length he describes as the canonical dose. Stillee is not affiliated with Huberman or his lab. What we ship is the protocol itself: body scan, slow breath, a guided descent to the boundary of sleep.

He has not endorsed an app, and Stillee is not affiliated with him or his lab. What he points people to is his own material: a 10-minute and a 20-minute NSDR recording on the Huberman Lab Clips channel, both in his voice. His site describes sessions running anywhere from 10 to 60 minutes. Beyond that he names Yoga Nidra as the source practice and leaves the choosing to you.

It is a 10-minute recording he published. You lie still, close your eyes, lengthen the exhale, and walk attention through the body while staying at the edge of sleep without crossing it. On hubermanlab.com he describes NSDR as a family of practices drawn from Yoga Nidra, and says he uses it himself in the afternoon. The protocol is generic. Nobody owns it.

It does not replace sleep, but it does reduce some of the cognitive cost of short sleep. A 20-minute NSDR session is widely reported to restore focus when a full nap is not possible. It is not a substitute for the consolidation and memory work that happens during a full sleep cycle.

There is no established limit, and most people who practise it settle on one session a day, sometimes two. No trial has tested frequency, so any number you read is a routine somebody found workable rather than a studied dose. If an afternoon session starts eating into how sleepy you feel at bedtime, move it earlier.

The most studied dose is 20 minutes, which is the canonical Huberman length and a common short Yoga Nidra session. Eight minutes is enough for a small reset between tasks. A full Yoga Nidra session runs 30 to 60 minutes and goes deeper.

Yes. The 60-minute Yoga Nidra session is a strong wind-down for an over-aroused nervous system. The shorter tracks are typically used during the day. If you are trying to fall asleep, you do not need the verbal cues at the end; an app should let you stop the audio when sleep arrives.

There is not one. He narrates sleep stories on Calm, so the association is a voice credit rather than an app he built or owns. The question lands next to NSDR searches because both get used at the same hour, but they are different formats: a sleep story is narrative audio that carries attention elsewhere, and NSDR is a guided rest protocol built around a body scan.

No, and the shared name is worth untangling. NSDR is guided: a voice takes you through a body scan at eight, twenty, or sixty minutes. Sound Bath's Deep Rest is forty-five wordless minutes of one deep tone, one soft texture, and a single gong swell near the start. Both live under Sleep in the app, and they are different practices for different nights.