Learn & Resources
Evidence-based sleep medicine,written by physicians.
Over 240 guides on sleep apnea, home sleep testing, CPAP therapy, and the comorbidities that make untreated sleep disorders dangerous. Every article is written or reviewed by our board-certified sleep medicine team.
1994
Practicing sleep medicine since
300K+
Patients tested at home
100+
Insurance plans accepted
24h
Typical test interpretation
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Most-used resources
If you are new here, these four resources answer 80% of questions we hear from patients.
What Is Sleep Apnea?
Causes, symptoms, health risks, and treatment options explained by physicians.
Epworth Sleepiness Scale
8-question self-assessment. Get your daytime sleepiness score in 2 minutes.
Frequently Asked Questions
Insurance, costs, what to expect, and how home sleep testing actually works.
Device Setup Guides
Step-by-step instructions for NightOwl, Dream, and ApneaLink home test devices.
Browse by topic
Sleep medicine, organized
Six topic clusters covering every question a patient typically asks before, during, and after a home sleep test.
Sleep Apnea Basics
Symptoms, diagnosis, types of sleep apnea, and when to get tested.
Home Sleep Testing
How HSAT compares to in-lab studies, accuracy data, and what your results mean.
CPAP & PAP Therapy
Machine types, mask fitting, side-effect fixes, and adherence troubleshooting.
Sleep & Heart Health
The cardiovascular link — hypertension, AFib, and stroke risk in untreated OSA.
Comorbidities
Diabetes, GERD, anxiety, weight gain — how sleep apnea connects to other conditions.
Insurance & Coverage
Medicare, commercial plans, prior authorization, and cost-of-care guides.
Editorial standards
Why our guides cite the studies they reference
Search results for sleep medicine are dominated by content marketing from device vendors, supplement companies, and SEO farms. Most of what ranks on the first page isn't wrong, but it's usually shallow — and occasionally dangerous. Patients acting on bad information delay diagnosis by months or years.
Every article on this site is written or reviewed by our board-certified sleep medicine physicians. Specific claims (prevalence rates, treatment efficacy, drug interactions, surgical success rates) are cited to primary sources: AASM clinical practice guidelines, ACP recommendations, peer-reviewed studies in Sleep, CHEST, and JAMA, and FDA-approved device documentation.
When something is uncertain, we say so. When the evidence has changed in the last few years (Inspire therapy outcomes, GLP-1 effects on OSA, central apnea management), we update the article and date the update.
Board-certified review
Every guide is signed off by a physician credentialed in sleep medicine.
Primary sources cited
AASM, ACP, peer-reviewed journals, and FDA device documentation.
Updated regularly
Articles are revisited when major studies, guidelines, or devices change.
Written for patients
Plain language, no jargon, no scare tactics. Real questions, real answers.
Recently published
New on the blog
Article
Night Guards for Bruxism: Stopping Sleep Teeth Grinding
Bruxism is unconscious teeth grinding or jaw clenching, often during sleep, that can wear teeth and cause jaw pain and headaches. A custom night guard protects the teeth, while managing stress and treating any sleep apnea addresses the triggers. It often occurs alongside sleep apnea.
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Mouth Taping for Sleep: Does It Work, and Is It Safe?
Mouth taping means placing a small strip over the lips to encourage nose breathing during sleep. Fans say it reduces snoring and dry mouth, but the evidence is limited and experts warn it can be dangerous for people with sleep apnea or a blocked nose. Talk to a clinician before trying it.
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Magnesium for Sleep: Does It Actually Work?
Magnesium is a mineral used in the nerve signals that calm the body for sleep. Evidence is mixed: it may modestly help people who are deficient or have restless legs. Forms like glycinate are gentler on digestion; check with your doctor before taking it nightly, especially with kidney issues.
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Sleep Paralysis: Why It Happens and How to Stop It
Sleep paralysis is a brief, harmless inability to move or speak as you fall asleep or wake up, sometimes with vivid hallucinations or chest pressure. It happens when the dream-stage muscle switch-off of REM sleep overlaps with being awake. Episodes last seconds to a couple of minutes.
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CBT-I: The First-Line Treatment for Chronic Insomnia
Cognitive behavioral therapy for insomnia (CBT-I) is the first-line treatment for chronic insomnia, more effective than sleeping pills. Over 4 to 8 weeks it retrains your sleep schedule, breaks the link between your bed and lying awake, and quiets the anxious thoughts that keep you up.
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Circadian Rhythm: How Your Body Clock Controls Your Sleep
Your circadian rhythm is the 24-hour internal clock that tells your body when to feel awake and when to feel sleepy. Light is its main control: morning daylight and steady sleep times keep it aligned, while late-night light and irregular schedules push it off.
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