How much Light, Deep, REM sleep is considered Healthy?
If you are getting the recommended amount of sleep 7-9 hours a night, you are spending One third of a day – Sleeping.
Ever wonder, how sleep helps us restore our productivity and physical energy?
You might feel like sleeping is considered ‘Lazy” but your mind and body is actually being very busy during your sleep.
I have talked about stages of sleep here (How come you can remember some dreams but some cannot?)
We will sleep through these stages of sleep every night.
Each stage of sleep will have different responsible your body.
So the question is “How much Light, Deep, REM sleep is considered Healthy?”
Light sleep is a non-REM stage, and it’s easiest to wake up during this stage.
On average, you will spend about 50 – 60% of your night in this stage.
Light sleep is a very important stage when your body processes memories and emotions and your metabolism regulates itself.
Your breathing and heart rate will slow down and getting ready to transit into the next stage of sleep.
Deep Sleep (Delta Sleep)
In this stage, your body become unresponsive to surrounding.
It is a time when your body has a complete disengagement with the external.
This stage is extremely important for our physical recovery.
Our brain wave will slow down to a point where it is almost offline, our muscles are completely relaxed.
Your organs detoxicate, your kidneys clean your blood, and your body replaces cells, heals wounds, and builds muscle tissues as well.
In healthy adults, about 13% – 23% of sleep is deep sleep.
So it’s roughly 60 – 110 minutes out of your 8 hours sleep.
Some people however find they need more Deep sleep in order to feel well rested.
There is no such thing as “too much deep sleep”
If Deep sleep is all about the body, then REM sleep is about our brain.
In this stage, the brain is very active during REM sleep, yet the body is very inactive. Actually it’s so inactive, you’re actively paralyzed during REM sleep.
For healthy adults, REM Sleep takes about 20 – 25% of your night and it mostly takes place in the second half of your night.
REM sleep also has a direct effect towards your brain activity and sometimes emotions.
Having not enough REM sleep will affect your ability to focus, memory problem and you might also feel groggy.
Constantly having too much REM sleep will cause too much brain activity. It might lead to frustrations, irritable, depression and anxiety symptoms.
Many medications will also have impact on our REM sleep especially a lot antidepressant medication will cut our REM by half!
If you are curious, I am currently on a journey tracking my own sleep log.
I am absolutely fascinated about this product. (Charge 3 by Fitbit)
Below it’s my first night sleeping on a mattress that is a bit firmer than my liking.
I will be tracking my sleep for a week to see how I perform against the “healthy” standard.
If you are curious about how I go, stay tuned, Like and Follow our facebook page below.