The department of
Sleep Health
Sleep health spans sleep quality, duration, and circadian rhythm — essays, field notes, and science on building rest that actually fits your life.
Pieces
6
Sleep Health
July 2026 · 10 min
The 3 a.m. Question: When Sleep Patterns Are Worth Telling a Doctor About
At 3:07 in the morning you are awake, and the question arrives fully formed: is this a problem? Not the tiredness — you've made a kind of peace with the tiredness.
By Thomas Greenwood · Read →
Sleep Apnea
July 2026 · 6 min
Who Actually Gets Sleep Apnea? The Body Type Myth, Compared Against the Data
Picture the person you think has sleep apnea. For most people the image arrives fully assembled: a middle-aged man, heavyset, snoring loud enough to rattle a door, going quiet for a few seconds, then…
By Megan Caldwell · Read →
Sleep Apnea
July 2026 · 5 min
What "Mild" Sleep Apnea Actually Means When the Number Is Five
The number came back as 6.2. That was my apnea-hypopnea index — the AHI — from a home sleep test I'd worn for one night, a nasal cannula taped under my nose and a pulse sensor clipped to a finger.
By Natalie Forsythe · Read →
Sleep Apnea
July 2026 · 5 min
Sleep Apnea Types: What the Diagnosis Actually Tells You
You get the report and there's a number on it. The apnea-hypopnea index — the AHI — counts how many times an hour your breathing stopped or shrank. Five is the threshold. Fifteen is moderate.
By James Hartley · Read →
Sleep Apnea
June 2026 · 4 min
The 80 Percent Problem: What the Numbers on Undiagnosed Sleep Apnea Actually Tell You
There's a statistic that gets repeated so often it has worn smooth: roughly 80 percent of people with moderate-to-severe sleep apnea don't know they have it.
By Samuel Briggs · Read →
Sleep Apnea
June 2026 · 4 min
Sleep Apnea, Defined: What the Word Actually Means When a Doctor Says It
The word is Greek. A-pnoia: without breath. When a sleep physician says sleep apnea, they are naming something almost comically literal — you stop breathing, briefly, while you sleep, and then you…
By Daniel Whitfield · Read →
— Adjacent departments
You might also be wandering toward
Adherence 4
Aging 1
AHI 3
Ai 1
Ai Tools 1
Air Travel 1
Airbed 1
Airway 4
Alcohol 2
Allergens 1
Allergies 3
Anatomy 1
Anxiety 2
APAP 1
Apnea 5
Appearance 1
Ar Adoption 1
Athletes 2
Augmentation 2
Augmented Reality 1
Australia 3
Autonomic 1
Back Pain 2
Batteries 1
Bed Frames 1
Bedding 4
Behavior 1
Behavioral 1
Biohacking 1
Biology 1
Blood Pressure 1
Blue Light 1
Bradycardia 1
Breastfeeding 2
Breathing 6
Bruxism 1
Burnout 1
Buying Guide 3
Caffeine 48
Caffeine Timing 1
Camping 3
Cannabis 1
Cardiac Health 1
Cardiac Risk 1
Cardiovascular 6
Casio 2
Cbt 1
CBT-I 9
Central Sleep Apnea 1
Cheyne Stokes 1
Children 2
Chronic Fatigue 1
Chronic Pain 1
Chronobiology 2
Chronotype 2
Circadian 23
Circadian Biology 1
Cleaning 1
Clinical 1
Cognition 1
Cognitive Health 1
Comfort 1
Comforters 1
Community 1
Comorbidities 3
Comorbidity 1
Compliance 1
Congestion 2
Cooling 2
Copd 5
CPAP 112
CPAP Alternatives 3
Cross Cultural 1
CSA 3
Cycle Tracking 1
Daylight 1
Daylight Saving 1
Daylight Saving 2
Deep Sleep 2
Delivery 1
Dental Sleep 1
Depression 4
Design 2
Device Design 1
Device Registration 1
Devices 1
Diabetes 3
Diagnosis 54
Diagnostics 3
Diet 3
Dogs 1
Dopamine 1
Dopamine Agonists 1
Dorm 1
Dream Diary 1
Dreams 1
Drowsy Driving 1
Dust Mites 1
Earnings 1
Emotion 1
Engineering 1
Enterprise Tech 1
Equipment 1
Evidence 3
Exercise 3
Experiment 6
Experiments 2
Eye Health 1
Fatigue 4
Fear 1
Foldables 1
Framework 1
Garmin 2
Gear 3
Genetics 1
Gerd 1
Gerontology 1
Glp 1 3
Guelph 1
Guidelines 1
Habits 2
Headaches 2
Health 3
Health Equity 1
Health Myths 1
Health Risks 1
Heart 1
Heart Failure 1
Heart Health 1
Holidays 1
Home Testing 1
Hot Sleepers 2
Hrv 1
Humidification 5
Humidifier 1
Hybrid 1
Hygiene 1
Hyperarousal 1
Hypertension 2
Hypoxia 1
Idiopathic Hypersomnia 1
Immunology 1
Infant Sleep 2
Insomnia 26
Insurance 1
Japan 1
Jet Lag 1
Lifestyle 3
Light 4
Light Exposure 1
Loneliness 1
Long Covid 1
Lung Health 1
Magnesium 2
Maintenance 1
Market Analysis 1
Mask Comfort 1
Mask Fit 2
Mask Fitting 2
Masks 2
Maternal Health 2
Mattress 2
Mattress Review 2
Mattresses 9
Me/cfs 2
Measurement 1
Mechanisms 1
Media 1
Medical Cost 1
Medical Devices 2
Medication 3
Medications 1
Medtech 3
Melatonin 5
Memory Foam 1
Menopause 2
Mental Health 4
Metabolism 5
Microbiome 1
Mindfulness 2
Mixed Reality 1
Monitoring 1
Mood 1
Myair 2
Myths 2
Napping 2
Narcolepsy 3
Nasal Aids 1
Nasal Breathing 1
Nasal Dilators 1
Natural Remedies 1
Neck Pain 2
Neonatal 1
Neurology 1
Neuroscience 2
Neurotech 1
Neuroticism 1
New Parents 1
Nicu 1
Night Eating 1
Night Owls 1
Nightmares 1
Noise 3
Non Pharmacological 1
NREM Sleep 1
Nutrition 3
Obesity 1
Ohrqol 1
Oral Appliances 2
Orientation 1
OSA 3
Overlap Syndrome 1
Pacing 1
Pain 1
Parasomnias 2
Patient Care 1
Patient Education 2
Pediatric 1
Pediatric Sleep 1
Pem 1
Personality 1
Pets 2
Physiology 1
Pillows 3
Policy 3
Polyphasic 1
Polysomnography 3
Position 1
Positional Therapy 2
Pregabalin 1
Pregnancy 4
Pressure Relief 1
Prevention 1
Privacy 1
Product Review 1
Product Testing 1
Psychology 1
Ptsd 2
Quest 3 1
Reflux 1
Regulation 1
Regulatory 1
Relationships 2
REM Sleep 1
Research 1
Resmed 4
Resolutions 1
Respiration 1
Respiratory 4
Respiratory Health 1
Restless Legs 1
Review 4
Reviews 8
Risk Factors 2
RLS 5
Running 2
Sad 1
Samsung 1
Screening 1
Screens 1
Sedentary 1
Segmented Sleep 1
Self Experiment 6
Self Testing 1
Self Tracking 2
Sex Differences 1
Sexsomnia 1
Shift Work 5
Side Sleepers 1
Skin 1
Sleep 60
Sleep Apnea 2
Sleep Tracking 2
Sleep Aids 4
Sleep Anxiety 1
Sleep Apnea 216
Sleep Apps 1
Sleep Debt 2
Sleep Deprivation 3
Sleep Diagnosis 1
Sleep Disorders 8
Sleep Duration 1
Sleep Environment 1
Sleep Gear 3
Sleep Genetics 1
Sleep History 1
Sleep Hygiene 7
Sleep Medicine 3
Sleep Myths 2
Sleep Nutrition 1
Sleep Onset 1
Sleep Position 1
Sleep Posture 1
Sleep Products 1
Sleep Quality 1
Sleep Research 1
Sleep Schedule 1
Sleep Science 10
Sleep Stages 1
Sleep Study 3
Sleep Tech 6
Sleep Testing 4
Sleep Therapy 2
Sleep Timing 1
Sleep Trackers 1
Sleep Tracking 14
Sleepwalking 1
Smart Rings 1
Smartwatches 2
Snoring 7
Stress 3
Stroke 2
Supplements 3
Surgery 3
Symptoms 2
Tailgating 1
Tbi 1
Teenagers 1
Terminology 1
Testing 4
Therapy 2
Thermoregulation 1
Tinnitus 1
Trackers 1
Tracking 1
Training 1
Travel 14
Treatment 12
Treatments 1
Troubleshooting 1
UARS 1
Unpacked 1
Va Claims 1
Vaccination 1
Ventilation 1
Veterans 2
Virtual Reality 1
Vpap 1
Vr 2
Vr Accessories 1
Wearables 39
Weight 1
Weight Loss 3
Wellness Tech 1
White Noise 1
Winter 2
Women's Health 2
Womens Health 3
Xr 2
Xyrem 1
Yoga 1