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The History of Polyphasic Sleep

How It Works

Sleep Stages 101

Light Sleep Stage 1

Light Sleep Stage 2

Slow-wave Sleep

Rapid-eye-movement Sleep

Why Polyphasic Sleep Works

Sleep Repartitioning

Minimum Sleep Threshold

Wake Time Programming (Natural Awakening)

Shortened Monophasic Sleep

Sleep Mechanics

Biological Rhythms

Glymphatic System

Sleep Pressure

Wake After Sleep Onset (WASO)

Wake Maintenance Zone

Reasons to Sleep Polyphasically

Starting a Polyphasic Lifestyle

Advantages of Polyphasic Sleep

Disadvantages of Polyphasic Sleep

Naturally Segmented Sleepers

Research & Resources

Peer-reviewed Research

Community Research Effort

Polyphasic Sleep Resources

Courses

Beginner Guide: The Choice of Sleeping Right

The Dark Period 

Is Polyphasic Sleep Dangerous?

Polyphasic Sleep Schedules

Biphasic

Segmented Sleep

Everyman 1

Siesta

Biphasic-X

Everyman

Everyman 2

Everyman 3

Everyman 4

Everyman 5

SEVAMAYL

Trimaxion

Dual Core

Dual Core 1

Dual Core 2

Dual Core 3

Dual Core 4

DUCAMAYL

Bimaxion

Tri Core

Triphasic

Tri Core 1

Tri Core 2

Core-only

Quad Core 0

CAMAYL

Nap-only

Uberman

Dymaxion

SPAMAYL

Tesla

Flexible Schedules

Non-reducing Schedules

Important Information

Age Considerations

Individual Differences

Daylight Saving Time

Naps

Cores

Understanding the Goals

Advanced Scheduling 

Bad Sleep Schedules

Before You Start

School & Work Schedules

First Shift

Second Shift

Third Shift

Rotating Shift

School & Exams

Substances

Caffeine

Alcohol

Melatonin

Other Substances

Medical Cautions

Sickness

Hypersomnia

Insomnia

Alzheimer’s Disease

Sleep Apnea

Schizophrenia

Narcolepsy

Other Medical Conditions

Metabolism

Long-term Metabolic Effects

Diets

Exercising

Other Lifestyle Considerations

Social Pressure

Parents

Travelling

Sex Life

Menstruation

Prayers & Polyphasic Sleep

Meditation

Religion

How to Adapt

Adaptation 101

Adaptation Stages

Preparing for an Adaptation

Adaptation Methods

Advanced Adaptation Tips

Strictness of Sleep Times

Adding Time to Fall Asleep

Managing Sleep Deprivation Symptoms

Sleep Positions

Selective REM & SWS Deprivation Effects

Products & Apps for Adaptation

Products

Software

Ultimate Light Filtering Calculator

Sleep Tracking

Introduction to Sleep Tracking

Olimex OpenEEG

Zeo

After Successful Adaptation

Flexible Sleep Strategies

Related Content (Blogs)

Dreaming

Dream Recalling & Forgetting

Dream Recall Frequency

Effects of Sleep Extension

The Day-residue & Dream-lag Effects

Partial REM Deprivation Effects

Dream Content & Psychological Well-being

Lucid Dreaming (Part 1)

False Awakening Dreams

Nightmares (Part 1)

Nightmare Sufferers (Part 2) 

Sleep Paralysis

Daydreaming & Polyphasic Adaptations

Hypnagogic State

Wake-induced Lucid Dreaming (WILD)

Lucid Dreaming (Part 2): More Research Evidence with Polyphasic Sleep

Health

Sleep Patterns of Tribal People

Historically Famous People

Cortisol Secretion Patterns on Polyphasic Sleep

Cortisol Response & Alarm Clocks

Adenosine Alertness Hypothesis

Determining SWS & REM Peaks

Sleep Chronotypes

The Forbidden Zone of Sleep

Yoga

Autogenic Training

NoFap

Non-24h Sleep Patterns

Productivity

Eisenhower Matrix

Pareto Principle

Parkinson’s Law

Mnemonic Techniques

Pomodoro Technique

Appetitive Napping

Prophylactic & Replacement Napping

Car Napping

Sleep Inertia

Procrastination