Sleep is not uniform. Instead, over the course of the night, your total sleep is made up of several rounds of the sleep cycle, which is composed of four individual stages. In a typical night, a person goes through four to six sleep cycyles. Not all sleep cycles are the same length, but on average they last about 90 minutes each.
409
5.54K reads
CURATED FROM
IDEAS CURATED BY
The idea is part of this collection:
Learn more about health with this collection
The benefits of a bedtime routine
How to improve your sleep quality
How to create a relaxing sleep environment
Related collections
Similar ideas to What is sleep cycle?
Your brain can only focus for 90 to 120 minutes before it needs a break.
This is the ultradian rhythm, a cycle that’s present in both our sleeping (the 90-minute cycles during which we progress through the five stages of sleep) and waking lives (as we move from higher to lower alert...
We spend about half our sleeping time in stage 2. It can last up to 50 minutes during the first 90-minute sleep cycle, and less during subsequent cycles.
During this time the brain consolidates the information that has been collected during the waking hours. It makes connections yo...
Your sleep cycles are approximately 75 to 90 minutes each. Factors like stress levels and unstable blood sugar levels can throw off your sleep cycles regardless of how much time you spend in bed.
Read & Learn
20x Faster
without
deepstash
with
deepstash
with
deepstash
Personalized microlearning
—
100+ Learning Journeys
—
Access to 200,000+ ideas
—
Access to the mobile app
—
Unlimited idea saving
—
—
Unlimited history
—
—
Unlimited listening to ideas
—
—
Downloading & offline access
—
—
Supercharge your mind with one idea per day
Enter your email and spend 1 minute every day to learn something new.
I agree to receive email updates