A guided body scan, eyes closed, nothing to achieve — for ten to forty-five minutes. That is the whole practice. Here is what NSDR is, where it comes from, what the evidence actually says, and how to try it without lying on the floor of your office.
What NSDR is
NSDR stands for non-sleep deep rest. It is an umbrella term for guided relaxation practices in which you lie down, stay awake but profoundly still, and follow a voice through a body scan, slow breathing and a gradual rotation of attention. You do not try to fall asleep, and you do not try to empty your mind. You are asked to notice.
The term was popularised by Andrew Huberman, a Stanford neuroscientist, who uses it as a plain-English label for practices that have older names: yoga nidra ("yogic sleep"), body-scan meditation, and some forms of guided imagery. The protocol is not new. What is new is the packaging: a short, secular, do-it-at-your-desk version of something people have practised for decades.
The practical appeal is the length. A session can be ten minutes or an hour, and it does not require you to be good at meditating. Most people who struggle with meditation are struggling with the effort. NSDR removes most of the effort.
What the research suggests
Be careful with the wording you see online, including the confident kind.
- A small 2022 study of healthy adults reported that a single NSDR session raised plasma dopamine and lowered cortisol afterwards. Small study, short-term measurements, healthy young participants. It is a hint, not a prescription.
- Reviews of yoga nidra — the closest traditional relative — describe modest improvements in sleep quality, perceived stress and relaxation, mostly in small trials with mixed designs.
- The most consistent finding across the whole relaxation literature is the least exciting one: lying still with your eyes closed and your attention turned inward reliably feels restorative, and feeling restored changes how you behave for the rest of the day.
Nothing here establishes that NSDR treats a condition. It is a wellness practice. If you are being told it will fix a diagnosed problem, that is a different claim than the evidence supports — including anything we say on this page.
How to practise it yourself
You do not need equipment. Huberman publishes a free NSDR script on the Huberman Lab NSDR page, and the same recording is on YouTube. The short version, if you want to try it right now:
- Lie on your back, legs uncrossed, arms at your sides. Eyes closed.
- Take ten slow breaths, letting each exhale run longer than the inhale.
- Move your attention slowly through the body — right hand, right arm, right shoulder, and so on — without changing anything.
- When your mind moves off (it will), note it and return to the body. That return is the practice, not a failure of it.
- Finish by widening your attention to the whole body and the room before you open your eyes.
Ten minutes is enough to notice something. Twenty is better. Do it before the afternoon slump rather than after it.
What a guided session at Solivana adds
The hard part of NSDR is not the technique, it is the conditions: a place to lie down, no interruptions, and a body willing to stop.
Our NSDR Deep Rest session is 45 minutes of guided non-sleep deep rest on a Zenthesia vibroacoustic bed — a bed that carries low-frequency vibration through the surface you are lying on, so the relaxation is felt as well as heard. You stay fully clothed. The guide is a recording, so the session is the same every time; staff start it for you, and you can ask for a change or stop at any time.
If you want a shorter version, Vibroacoustic Sound Healing is 20 minutes of sound and vibration on the same bed, without the full guided script. Both are on the Experiences page, both are eligible for membership credits, and neither requires a membership.
Book NSDR Deep Rest · 45 min · $130
Book Vibroacoustic Sound Healing · 20 min · $75
Who should check first
Tell us, and your clinician, before booking if you are pregnant, have an implanted device such as a pacemaker or insulin pump, have a seizure disorder, are recovering from surgery, or are sensitive to low-frequency sound and vibration. Some people feel briefly disoriented after a deep rest session — give yourself a few minutes before driving.
These are wellness services, not medical diagnosis or treatment, and they are not a substitute for sleep. If you are genuinely sleep-deprived, the answer is sleep. NSDR is what you do with the other eleven hours.