Why Sleep Eludes Us — And How to Find Our Way Back Part 3 of a 4-Part Series

Sleep, Memory & the Nervous System

What REM and Deep Sleep Reveal About Brain Health

When a woman in her 70s first came to see me, her primary concern wasn’t sleep.

It was memory.

She was noticing subtle but unsettling changes — moments of forgetfulness that didn’t feel like her. Naturally, her mind went to the worst places, as so many of us do when cognition feels less reliable.

Before jumping to conclusions, we slowed everything down.

Memory does not exist in isolation. It is shaped by sleep, stress, movement, nourishment, sensory input, and nervous system regulation. So we began observing the full picture of her life — not just what she feared was failing.

One thing quickly stood out.

Her sleep data told a story her waking hours could not.

Her wearable showed that she was getting very little deep sleep, and almost no REM sleep at all.

This reframed everything.

REM sleep is essential for memory consolidation, emotional processing, and cognitive integration. Deep sleep supports brain detoxification, cellular repair, and long-term neurological health. When these stages are consistently absent, the brain never gets the chance to fully restore itself.

In other words, her memory wasn’t failing — it was exhausted.

This discovery shifted our focus away from fear and toward support.

Her protocols became layered and intentional, addressing multiple aspects of nervous system regulation and sleep architecture.

But one small addition proved to be unexpectedly powerful.

Scent.

Through a conversation with a master yogini about her personal “sleep stack,” I learned about the intentional use of different smells to support different stages of sleep — REM, deep, or lighter phases.

While there is emerging research around scent and memory, this specific application was something I had not yet explored deeply in the literature.

Still, the clinical results spoke clearly.

With the thoughtful addition of specific essential oils, her sleep patterns began to shift. REM sleep appeared more consistently. Deep sleep increased. And with time, her confidence in her memory returned alongside her rest.

This experience was a powerful reminder that the nervous system speaks many languages — not just logic and routine, but sensation and safety.

Sometimes the brain doesn’t need to be pushed harder.

It needs to feel supported enough to let go.

This is why sleep is so central to conversations around aging, cognition, and long-term brain health.

Sleep is not passive.

It is one of the most active healing states the brain enters each day.

And when sleep is compromised, the brain is asked to function without ever fully repairing.

At the Crazy Wellness Sleep Retreat, we explore sleep not just as a habit, but as a neurological necessity — one that deserves curiosity, gentleness, and respect.

In the final story of this series, we’ll look at sleep through yet another lens: stress.

And how, for some, supporting the stress response is the missing key that allows deep sleep to return.

If memory, clarity, or cognitive resilience has been on your mind, I invite you to stay with the conversation.