Rest - rebranded

There is a phrase I keep hearing lately that sounds almost too clinical to be comforting: non sleep deep rest, or NSDR.

It has been cropping up on neuroscience podcasts, in wellness circles, and across social feeds where health and performance conversations intersect. At first it felt like another wellness buzzword. I half expected it to come with a subscription and a specialised cushion.

But the more I listen, especially to neuroscientists like Andrew Huberman who frequently reference the practice, the more it feels like this is simply our nervous system’s language for what it has been craving all along.

So what is NSDR? At its simplest, it refers to a state of deep, intentional rest while awake. It usually involves guided relaxation techniques that help the body and brain shift out of fight or flight and into a more restorative state. The goal is not sleep, but something close to it. A form of rest that research suggests carries measurable benefits.

Some of the practices grouped under NSDR are centuries old. The term itself is newer, popularised in part because it sounds scientific and measurable. That alone says something about our modern relationship with rest. We seem more comfortable embracing it when it sounds evidence based and performance enhancing than when it is simply called lying down for a while.

There is growing research to support the value of these practices. Studies show reductions in stress and cortisol, the hormone linked to chronic tension and anxiety. Other research suggests that intentional deep rest may support neuroplasticity and memory consolidation, meaning short sessions after focused work can help the brain process and integrate what it has learned more effectively than pushing through fatigue.

It is important to be clear that NSDR is not a replacement for regular sleep. But it does appear to complement good sleep habits. When the nervous system becomes better at settling during intentional rest, that skill can carry into night-time sleep, potentially improving overall sleep quality even if total hours do not change.

Because of that, I am curious enough to try it. Over the next week I plan to experiment with ten-minute guided NSDR sessions in the afternoon and see if anything shifts for me. I will likely forget at least once, but I suppose that will be a useful test of the memory consolidation claims.

For context, my partner already practises a version of this most evenings on the couch while watching extremely detailed YouTube videos about some man with a questionable beard talking about car engines. It looks deeply restful. I am just not convinced it qualifies as neuroscience.

Still, if giving it an acronym means I can lie down in the middle of the day and call it performance enhancement rather than “having a little nap,” I am willing to lean in.

“Sorry, I cannot talk right now. I am engaging in non-sleep deep rest for optimal cognitive consolidation.”

So superior.

For reals though, if that is what it takes for us to rest without guilt, then perhaps the rebrand was worth it after all.