Understand Your Sleep.
Improve Your Life.
Research-backed sleep education for patients. Clear, actionable guides on insomnia, sleep apnea, CPAP therapy, and the science of sleep.
Evidence-Based
Content based on peer-reviewed research and clinical guidelines
Patient-Focused
Written in clear language for patients and caregivers
No Conflicts
Independent education with full source citations
Not sure where to start?
Most people arrive with one of these questions. Each link goes to the guide that answers it.
Models you can operate
Set the inputs, step through the simulation, and watch a mechanism behave rather than reading a description of it. Each exhibit says plainly which parts follow from the physiology and which are assumptions laid on top.
Two processes, one sleeper
Sleepiness is not one quantity but the distance between two: a pressure that builds while you are awake, and a clock that sets how much pressure it takes to put you under. Move the bedtime, try to nap, lose a night — and watch why six in the morning feels better than four.
Open exhibitInsomnia & CBT-IWhy less time in bed produces more sleep
Ten hours in bed, five hours asleep. Set your own bedtime and wake time, watch the window shrink to fit the sleep, then step through the weeks as it grows back fifteen minutes at a time. Four steps, one bar each — built to be understood in a clinic visit.
Open exhibitSleep apneaThe airway closes, and four signals find out at different times
Between the back of the nose and the top of the larynx there is no bone holding the airway open — only muscle, and sleep turns the muscle down. Choose a mild, moderate or severe airway, set the arousal threshold, the sleep stage and which way the sleeper is lying, then watch the EEG, the airflow, the chest belt and the oximeter disagree about when the event happened — and about what it cost. Then put the CPAP mask on and watch the airway held open from the inside.
Open exhibitSleep apneaBreathing during sleep, breath by breath
One loop keeps you breathing all night: the throat, the chest and belly, the blood and the brain. Start with a normal night, then close the airway with a button and watch the chest pull, the oxygen fall and a brief wake up open the throat again. Switch to sleep apnea, heart failure breathing, high altitude or opioid pain pills, add a risk factor, and try CPAP and the other treatments.
Open exhibitExplore by Topic
In-depth guides organized by the sleep topics that matter most to patients.
Insomnia & CBT-I
Evidence-based behavioral strategies for overcoming insomnia, including sleep hygiene, stimulus control, sleep restriction, and cognitive techniques.
Sleep Apnea
Understanding obstructive and central sleep apnea, diagnosis, CPAP therapy, mask selection, compliance strategies, and alternative treatments.
Restless Legs Syndrome
Patient guides for restless legs syndrome — symptoms, diagnosis, iron therapy, the latest 2025 AASM treatment guidelines, and managing daily life with RLS.
Circadian Rhythm Disorders
Delayed and advanced sleep phase disorders, shift work disorder, jet lag, and non-24-hour sleep-wake disorder — how the body clock drifts out of sync and how to reset it.
Narcolepsy & Hypersomnias
Central disorders of hypersomnolence — narcolepsy type 1 and type 2, idiopathic hypersomnia, and how to tell everyday tiredness from pathological sleepiness.
Sleep Science
The science of sleep explained — sleep stages, circadian rhythm, sleep drive, common myths, and how much sleep you really need.
Special Populations
Sleep guidance for shift workers, pregnancy, children, and older adults — tailored advice for unique sleep challenges.
Featured Guides
Start here for the most essential sleep education.
Delayed Sleep Phase Syndrome: A Comprehensive Patient Guide
Delayed sleep-wake phase disorder (DSPS/DSWPD): causes, symptoms, the body clock science, and evidence-based treatment with light and melatonin.
Shift Work Disorder: Surviving Nights and Rotating Shifts
Shift work disorder explained — the science of working against your body clock, health risks, and evidence-based strategies for night and rotating shifts.
Is This Sleepiness Normal? When Daytime Tiredness Is a Red Flag
How to tell the difference between ordinary tiredness and pathological sleepiness — warning signs, self-screening questions, and when to see a sleep specialist.
Central Disorders of Hypersomnolence: An Overview
A patient guide to the central hypersomnolence disorders — narcolepsy type 1, type 2, idiopathic hypersomnia, and related conditions.