If you ever ask,
Do I need more deep sleep or more REM?
You are asking the right question.
Tonight's sleep isn't just sleep.
It's a cycle of recovery for your body and your mind.
And yes,
Your dreams can become part of the upgrade.
We are going to check how sleep cycles work.
What deep sleep does?
What REM does?
The key differences.
And simple habits to improve both without getting overly technical.
But first we are going to do a small exercise.
Inhale.
One.
Two.
Three.
Four.
And exhale.
One.
Two.
Three.
Four.
Five.
Six.
And quietly state.
My body restores.
My mind clears.
I sleep well.
Most nights you move through about four to six sleep cycles.
Each cycle includes deep sleep and REM.
And as the night progresses,
REM tends to get longer.
Especially towards the second half of the night.
So your sleep is structured.
Even if you don't remember it.
And yes,
You experience deep sleep and dreaming every night.
Deep sleep drives restoration.
REM supports mental organization,
Problem solving and vivid dreaming.
So let's keep this simple.
Let's talk about the four stages.
The first stage is transition.
Which represents very light sleep where relaxation deepens and tension releases.
Then we have light sleep and memory processing.
Here is where the body temperature drops.
We experience non-rapid eye movement.
And we start relaxing deeper.
Then we have the third stage which is the deep sleep.
Body restoration,
Tissue repair,
Immune system strengthening.
A lot of recovery and a lot of healing.
But generally you don't dream here.
And the fourth stage is the REM phase,
The thinking,
The rapid eye movement.
Here you have strong brain activity,
Problem solving and dreams.
And your body is paralyzed so you don't act your dreams out.
Your brain regulates this naturally.
Especially with a good sleep hygiene.
REM stands for rapid eye movement.
And it's where the fun one happens.
Dreaming.
You can literally see the eyes moving behind the eyelids.
In REM your brain is working fast.
Your amygdala and hippocampus are highly active.
Which explains why dreams can feel emotionally intense and vivid.
Meanwhile the frontal cortex slows down.
So you stop questioning what's happening.
Unless you train yourself.
This is also why lucid dreaming practice works here.
Doing a reality check inside a dream can jolt you lucid.
And sometimes,
Especially at first,
Even waking you during practice.
So some of the REM benefits are emotional regulation,
Brain development since kids have a longer REM,
Creativity and problem solving,
As well as mental health reset and organization.
Then as far as the deep sleep goes,
This is where your brain slows into low delta waves.
A deep relaxation.
This is a phase linked with deep physical healing.
Where you repair your tissue,
You grow new tissue,
You strengthen the immune system,
And you support hormone regulation.
Deep sleep matters so much that it can be very hard to wake you up during this phase.
In fact,
If you do wake up,
You may feel heavy and groggy.
And this is what you call sleep inertia.
So some of the benefits from deep sleep are memory consolidation,
Physical healing and repair,
Growth and development,
As well as hormone regulation and immune system support.
So for it to have a clean comparison between REM versus deep sleep,
First is that deep sleep tends to dominate more in the first half of the night,
And it promotes physical recovery.
The REM phase tends to dominate more in the second half of the night and focus on the mental recovery.
As far as movement goes,
In deep sleep muscles relax and you can still shift positions.
But in REM,
You experience sleep atonia,
Also called sleep paralysis,
So you don't act out your dreams.
When you wake up from deep sleep,
It's very difficult,
And you will feel very much affected by sleep inertia.
From REM phase is easier to wake up and often you feel less groggy.
A way to improve both,
In a way if you are generally healthy,
Your brain can balance its cycles.
So your job is to stop sabotaging the system.
The essentials are for you to keep your room dark and fresh,
At a comfortable temperature,
Avoid using,
Please,
Your phone in bed,
Terrible,
Do relaxing activities in the hour before sleep,
And detach from current challenges.
Tomorrow can hold them,
Tonight is for rest.
And if you want a motivational boost,
Dream tracking helps you learn your patterns,
And lucid dreaming can make you want to protect your sleep instead of sacrificing it to empty screens.
So remember,
Deep sleep restores the body,
REM restores the mind and hosts dreams.
Get it both,
Because every night your brain's running cycles a sign to heal you.
Your habits decide how cleanly that system runs.
If this helped,
Please follow me and leave one comment or review,
And share what's your biggest sleep blocker,
Phone in bed,
Stress or perhaps an inconsistent schedule.
For tonight pick one upgrade,
Put the phone away,
Darken the room,
And give your brain the space to do what it already knows how to do.
Please share this with anyone if you believe it can help them.
You've been listening to your Daily Dose of Light with Fernando Albert.
