Brian C.
US Navy veteran with service-connected sleep apnea. CPAP user since 2023. I built CPAP Clarity because I wanted to understand my own therapy data without installing desktop software or trusting a cloud service with my health information.
Every article on this site is written from the perspective of someone who actually uses CPAP every night. I cross-check clinical claims against published research (AASM guidelines, peer-reviewed studies) and verify every data feature against OSCAR and manufacturer apps before it ships.
CPAP Clarity is free and private. Your sleep data never leaves your browser.
Articles (98)
CPAP Machine Comparison (5 Brands, 2026)
Side-by-side comparison of every major CPAP brand: ResMed, BMC, Luna G3, Lowenstein, and Philips. Algorithms, data access, noise, and accessories.
May 27, 2026AHI vs ODI: Why CPAP and Oximeter Disagree
Your CPAP says AHI 2 but your pulse oximeter shows ODI 8. Three reasons the two numbers diverge and what to bring to your sleep physician.
May 22, 2026Using Your Apple Watch Alongside CPAP
Sleep stages, heart rate, HRV, and SpO2 from your Apple Watch add autonomic context to your CPAP data when imported as the Apple Health export.
May 17, 2026Good AHI But Still Tired? Beyond CPAP Data
Your AHI is under 5 and your CPAP says everything is fine, but you wake up exhausted. Here are the signals your CPAP cannot see and how to find them.
May 17, 2026CPAP Data for VA Claims: Compliance Guide
Use your CPAP machine's recorded data to support a VA sleep apnea claim and protect your 50% disability rating during reviews.
April 30, 2026Track CPAP Compliance From Your Imported Data
Use the CPAP Clarity compliance tracker to monitor the Medicare 70%/4-hour rule, find your best 30-day window, and project your pass date.
April 28, 2026Using Your Oura Ring to See What CPAP Misses
Sleep stages, HRV, body temperature, and SpO2 from your Oura ring give you autonomic and recovery context CPAP data alone cannot show.
April 28, 2026CPAP Deep Clean: 30-Minute Monthly Routine
A 30-minute monthly routine that removes mineral buildup, sanitizes the humidifier, and gets your hose, headgear, and chamber back to like-new.
April 27, 2026CPAP for Veterans: VA Coverage and Ratings
What every veteran needs to know about CPAP therapy and the VA: free machines and supplies, disability ratings, PTSD overlap, and where to start.
April 27, 2026Still Tired on CPAP? Stepwise Guide to Why
Compliant on CPAP but still exhausted? Work through the diagnostic ladder: usage, residual AHI, RERAs, leak, sleep hygiene, and conditions beyond OSA.
April 27, 2026Pulse Oximeters for CPAP: Why Track SpO2
An overnight pulse oximeter shows whether your CPAP is reaching your oxygen. How to read SpO2, ODI, and time below 88% on top of your AHI.
April 25, 2026Löwenstein Prisma Smart: Data Access Guide
Löwenstein Prisma Smart APAP review and SD card data guide. See your AHI, events, pressure, and settings in your browser, free, no account.
April 23, 2026Best Free CPAP Data Tools Compared (2026)
Honest 2026 comparison of CPAP Clarity, OSCAR, myAir, and SleepHQ. Strengths, weaknesses, supported devices, and which free CPAP data tool fits your needs.
April 19, 2026Why Your AHI Went Up: What to Check First
Practical triage for a sudden AHI rise. Check leak, pressure, mask age, event type, and lifestyle. When to escalate to your sleep doctor.
April 19, 2026Your First 30 Days on CPAP: A Survival Guide
Everything new CPAP users need to know. Night-by-night expectations, common problems, supplies, and how to hit compliance.
April 17, 2026How to Back Up and Restore Your CPAP History
Download a zip of your CPAP Clarity history, save it locally, and restore it on any browser or computer. No cloud, no account.
April 16, 2026Best Travel CPAP Machines in 2026
Compare the top travel CPAP machines for 2026 by size, weight, noise, and battery life. ResMed AirMini, Transcend Micro, Z2 Auto, and more.
April 15, 2026CPAP vs BiPAP vs ASV vs APAP: Modes Explained
Every sleep apnea therapy mode compared. What CPAP, APAP, BiPAP, ASV, and ST modes do, who needs each, and how the data differs.
April 13, 2026CPAP Travel Battery Guide: 2026 Picks
How to choose a CPAP travel battery. DC-direct vs AC inverter, FAA carry-on rules, runtime estimates, and the best options for ResMed and travel CPAPs.
April 12, 2026STOP-BANG: Sleep Apnea Risk Screening
How the STOP-BANG questionnaire screens for obstructive sleep apnea risk. 8 yes/no questions, scoring, accuracy, and what to do with your results.
April 12, 2026How to Order CPAP Supplies Through the VA
How veterans order free CPAP masks, tubing, filters, and machines through the VA. Eligibility, replacement schedule, ordering methods, and common issues.
April 12, 2026CPAP Travel Guide: Flying and Camping
Everything you need to travel with a CPAP. TSA rules, battery options, packing tips, and how to keep your therapy consistent.
April 11, 2026AirSense 11 vs AirCurve 11: Quick Comparison
ResMed's AirSense 11 and AirCurve 11 look identical but serve very different needs. Compare specs, therapy modes, data, and pricing.
April 9, 2026Import CPAP Data from Drive, iCloud, OneDrive
Cloud-synced folders can't always be imported directly. Fix Google Drive, iCloud, OneDrive, and Dropbox placeholder errors in 60 seconds.
April 8, 2026CPAP Therapy Cost: 5-Year Guide (2026)
What CPAP therapy actually costs over 5 years: machine, masks, filters, supplies, power. Medicare vs cash, plus a free calculator to estimate yours.
April 8, 2026CPAP Supply Replacement Schedule (2026 Guide)
When to replace your CPAP mask, cushion, tubing, filters, and water chamber. Manufacturer timelines and real-world signs.
April 8, 2026CPAP Troubleshooting: 12 Common Fixes
Diagnose CPAP side effects. Fix dry mouth, aerophagia, mask leaks, claustrophobia, and nasal congestion with a free symptom-based tool.
April 8, 2026AirCurve 11 ASV Review: Reading Your ASV Data
ResMed AirCurve 11 ASV review and SD card data guide. Read your ASV central apnea therapy data in your browser, free of charge.
April 7, 2026BMC G3 A20 CPAP Review: Data Access Guide
BMC G3 A20 AutoCPAP review and SD card data guide. See your AHI, pressure, leak, and machine settings in your browser, free.
April 7, 2026CPAP Cleaning Myths: What the FDA Says
The FDA has warned against ozone and UV CPAP cleaners. Here is what the science actually says and what really works to clean your machine.
April 7, 2026Luna G3 CPAP Review: Data Access Guide
React Health Luna G3 (BMC G3 A20) review and SD card data guide. See your AHI, pressure, leak, and machine settings in your browser, free.
April 7, 2026ResMed AirCurve 10: BiPAP Data Guide
What your AirCurve 10 records, how to read bilevel therapy data, and what I:E ratio and inspiratory time mean for your therapy.
April 6, 2026Berlin Questionnaire: Sleep Apnea Risk Screen
How the Berlin Questionnaire screens for sleep apnea risk across snoring, daytime sleepiness, and BMI. Scoring guide with category breakdown.
April 6, 2026BMC E-20A AutoCPAP: Review and Data Guide
Everything about the BMC E-20A AutoCPAP: what it records, how to read your SD card data, and how it compares to ResMed machines.
April 6, 2026Insomnia Severity Index: Score Your Sleep
How the ISI measures insomnia severity, what your score means, and evidence-based, practical steps to improve your sleep tonight.
April 6, 2026Sleep Apnea Comorbidities: Heart and Mind
How untreated sleep apnea affects your heart, blood sugar, mood, and mental health, and what CPAP therapy can do about it.
April 6, 2026Sleep Cycles: Find Your Ideal Bedtime
Learn how 90-minute sleep cycles work, why waking mid-cycle causes grogginess, and find your optimal bedtime with our free calculator.
April 6, 2026CPAP SD Card Not Working? Common Fixes
Fix SD card errors on your ResMed AirSense 10, AirSense 11, or AirCurve 10. Card not recognized, corrupt data, formatting issues, and more.
April 4, 2026Best SD Card for Your CPAP (2026 Guide)
Which SD card works with your CPAP? Card type, size, format, and top picks for every brand. ResMed, BMC, Luna G3, and more.
April 1, 2026Medicare CPAP Compliance: The 4-Hour Rule
Understand the Medicare CPAP compliance rule: 4+ hours on 70% of nights in a 30-day window. Learn how to track progress and what happens if you miss.
April 1, 2026VA Sleep Apnea Disability Ratings Explained
How VA rates sleep apnea for disability: 50%, 30%, and 0% criteria, C&P exam tips, and what veterans need to know in 2026.
April 1, 2026Alcohol and Sleep Apnea: What Your Data Shows
Alcohol relaxes your airway and increases apnea events. Here is what the data actually shows and why your weekend AHI may be higher.
March 31, 2026Sleep Apnea Risk Factors: Are You at Risk?
The eight risk factors that predict obstructive sleep apnea, why each one matters, and what to do if several apply to you.
March 31, 2026Understanding the Epworth Sleepiness Scale
What the Epworth Sleepiness Scale measures, how doctors use it, what your score means, and when to talk to a healthcare provider about sleepiness.
March 31, 2026CPAP Humidity Settings: Finding Your Level
Learn how CPAP humidity settings work, what level to start with, and how to fix dryness or condensation by adjusting your humidifier.
March 30, 2026CPAP Rainout: Causes and Quick Fixes
Water splashing in your CPAP hose at 3am is fixable. Learn what causes rainout and five proven solutions to stop condensation for good.
March 30, 2026Treatment-Emergent Central Apnea Guide
CPAP can trigger central apneas in 5-15% of users. Learn what TECSA is, how to spot it in your data, and when to talk to your doctor.
March 30, 2026SleepHQ Alternative: Free CPAP Analysis
SleepHQ charges $15/month and stores your health data in the cloud. CPAP Clarity does the same analysis for free, and your data never leaves your browser.
March 29, 2026Beyond myAir: What Your ResMed Really Records
myAir shows about 5% of your CPAP data. Your SD card has detailed charts, event breakdowns, and pressure trends myAir hides. Here's how to see them.
March 28, 2026OSCAR Alternative: 4 Free CPAP Tools (2026)
OSCAR is powerful but desktop-only and complex. Compare CPAP Clarity, myAir, and SleepHQ to pick the right CPAP data tool for your needs.
March 27, 2026Wearable Devices That Can Detect Sleep Apnea
Compare Apple Watch, Samsung Galaxy Watch, Withings, Oura Ring, and more. Which wearables screen for sleep apnea and how accurate are they?
March 26, 2026Can Your Apple Watch Detect Sleep Apnea?
How Apple Watch detects sleep apnea, which models support it, how accurate it is, and what to do if you get a notification.
March 25, 2026CPAP Data Privacy: How We Protect Your Data
Your CPAP records sensitive health data nightly. Learn how different tools handle that data, and why CPAP Clarity's browser-only approach keeps you in control.
March 24, 2026Import CPAP Data on iPhone, iPad, or Android
Read your ResMed SD card on iPhone, iPad, or Android with a USB-C card reader. Step-by-step guide with product picks and troubleshooting.
March 23, 2026What to Bring to Your Sleep Doctor Visit
Make the most of your sleep doctor visit. Learn which CPAP metrics to share, how to get your data, and what questions to ask.
March 22, 2026ResMed AirSense 11: Get More from Your Data
Everything your AirSense 11 records on its SD card and how to access the detailed therapy data that myAir doesn't show you.
March 21, 2026Buying a CPAP Without a Prescription
Yes, you can buy CPAP machines and supplies without a prescription in some cases. Here's what you need to know about direct-to-consumer options and the rules.
March 20, 2026Best CPAP Pillows for Side Sleepers in 2026
CPAP pillows have cutouts that keep your mask from shifting and leaking. Here are the best options for side sleepers and what to look for.
March 19, 2026Best CPAP Masks for Stomach Sleepers in 2026
Stomach sleeping with CPAP is the hardest position to make work. These low-profile masks and tips can help you sleep face-down without constant leaks.
March 18, 2026Best CPAP Masks for Mouth Breathers in 2026
Mouth breathers need a mask that works with them, not against them. Here are the best CPAP masks plus tips to reduce mouth breathing.
March 17, 2026Best CPAP Masks for Side Sleepers in 2026
Side sleeping with CPAP can cause leaks and pressure marks. Here are the best masks for side sleepers, plus tips to improve your seal.
March 16, 2026Best CPAP Machines 2026: Buyer's Guide
From the ResMed AirSense 11 to budget-friendly options, here's everything you need to know about choosing a CPAP machine in 2026.
March 15, 2026AirSense 11 vs 10: Is the Upgrade Worth It?
The AirSense 11 has a touchscreen, Bluetooth, and a sleeker design. But is it actually better for therapy? Here's an honest comparison.
March 13, 2026Why Snoring Shouldn't Be Ignored
Snoring might seem harmless, but it can be a sign of sleep apnea. Learn when snoring is dangerous, what it means for your health, and when to get tested.
March 11, 2026Sleep Apnea and Weight Loss: The Research
Weight loss can reduce or even eliminate sleep apnea for some people. Here's what the science shows, including the GLP-1 medication connection.
March 9, 2026Travel with Your CPAP: The Complete Guide
Flying with CPAP, hotel tips, battery packs, and TSA rules. Everything you need to know to keep your therapy going on the road.
March 7, 2026CPAP Tips for Couples: Sleeping Better
CPAP therapy can be tough on relationships. Noise, hoses, and mask awkwardness are real. Here are practical tips for making it work when you share a bed.
March 5, 2026CPAP Consistency: 6 Hours Beats Skipping
You don't need perfect CPAP nights. Consistent use, even imperfect, delivers the real health benefits. Here's the science and practical tips to stay on track.
March 3, 2026CPAP Side Effects: Common Issues and Fixes
From bloating to dry mouth to claustrophobia, here are the most common CPAP side effects and proven solutions for each one.
March 2, 2026Improve CPAP Compliance: 10 Practical Tips
Struggling to use your CPAP every night? These evidence-based strategies help you build the habit and actually stick with therapy.
March 1, 2026CPAP Mask Too Tight? How to Get a Better Fit
Red marks, pressure sores, and headaches from your CPAP mask usually mean it is too tight. Learn how to fit your mask properly and stop over-tightening.
February 28, 2026How to Clean Your CPAP: What Actually Works
Skip the expensive UV cleaners. Here's a simple, effective CPAP cleaning routine that takes 5 minutes and actually keeps your equipment safe.
February 27, 2026Insurance and Sleep Studies: Costs Covered
Sleep study costs range from $300 to $3,000. Here is what insurance typically covers, what you will pay, and lower-cost alternatives.
February 26, 2026CPAP Dry Mouth and Nose: Causes and Fixes
Waking up with a desert-dry mouth or nose is one of the most common CPAP complaints. Here's why it happens and how to fix it for good.
February 25, 2026Sleep Apnea Diagnosis: Reading Your Results
How to interpret your sleep study results: AHI severity thresholds, oxygen scores, event types, and what each metric means for treatment.
February 24, 2026Full Face vs Nasal Mask: Which to Choose
Full face vs nasal CPAP mask: how to choose based on your breathing pattern, sleep position, and comfort needs. Includes pros, cons, and fitting tips.
February 23, 2026How to Talk to Your Doctor About Snoring
Snoring is worth mentioning at your next appointment. Here is what to track, how to bring it up, and what your doctor will do next.
February 22, 2026Types of CPAP Masks: 4 Styles Compared
Types of CPAP masks compared. Nasal vs full face vs nasal pillow vs cradle, with picks by breathing style, sleep position, and pressure range.
February 21, 2026Sleep Apnea Quiz: Doctor Screening Questions
The STOP-BANG, Epworth, and Berlin questionnaires doctors use to screen for sleep apnea. Learn what each tool measures and why no quiz replaces a sleep study.
February 20, 2026Why Your CPAP Mask Leaks and How to Fix It
Practical solutions for CPAP mask leaks, from quick fixes to knowing when it's time for a new mask. Reduce leak rate and improve therapy.
February 19, 2026What to Expect at a Sleep Study
Nervous about your sleep study? Here is exactly what happens before, during, and after, for both in-lab and home sleep tests.
February 18, 2026Central vs Obstructive Sleep Apnea Explained
Your CPAP data shows different event types. Learn the difference between central and obstructive apneas and how it affects your treatment.
February 17, 2026How to Get Tested for Sleep Apnea
From first symptoms to diagnosis: how sleep apnea testing works, what to expect, and how to move through the process quickly.
February 16, 2026Home Sleep Test vs. In-Lab Sleep Study Guide
Compare home sleep tests and in-lab polysomnography. Learn what each measures, typical costs, and how to decide which is right for you.
February 15, 2026Understanding Your CPAP Pressure Settings
What do your CPAP pressure numbers mean? Learn about fixed vs auto pressure, how your machine adjusts, and how to read your pressure data.
February 14, 2026CPAP Adjustment Period: A Realistic Timeline
A week-by-week guide to the CPAP adjustment period, with practical tips for each phase and what to expect along the way.
February 13, 2026Understanding EPR: Expiratory Pressure Relief
EPR makes breathing out easier on your CPAP. Learn what the EPR settings mean, how they affect your therapy, and whether you should change yours.
February 12, 2026Sleep Apnea in Women: Why It's Underdiagnosed
Women make up 40% of sleep apnea cases but are diagnosed far less. Learn why symptoms differ, how hormones play a role, and CPAP tips for women.
February 11, 2026How to Use CPAP Clarity: A Complete Guide
Import your CPAP SD card in 60 seconds. See your AHI trend, leak data, and a doctor-ready PDF. Free, no account, no upload. Your data stays on your device.
February 10, 2026You Can Test for Sleep Apnea at Home Now
Modern home sleep tests are accurate, affordable, and done in your own bed. How they work, who qualifies, and how to get one.
February 9, 2026BiPAP vs CPAP: Differences and How to Choose
Understand the key differences between BiPAP and CPAP, including who needs bilevel therapy and why you cannot switch on your own.
February 8, 2026Why CPAP Therapy Can Change Your Life
CPAP isn't just about snoring. Consistent CPAP therapy reduces your risk of heart attack, stroke, diabetes, and depression, and can add years to your life.
February 7, 2026Understanding Flow Limitation on Your CPAP
What flow limitation means on your CPAP data, how to read the chart, and why it matters even when your AHI looks normal.
February 6, 2026Do I Have Sleep Apnea? Signs and Symptoms
Learn the warning signs of sleep apnea, who's at higher risk, why it matters for your health, and what to do if you suspect you have it.
February 5, 2026CPAP SD Card: Stored Data and How to Read It
Your CPAP SD card holds detailed sleep data that myAir never shows you. Learn what is on the card, how to access it, and what tools can read it.
February 4, 2026How to Read CPAP Data (AHI, Leak, Pressure)
How to read your CPAP data step by step. What AHI, leak rate, pressure, and event counts mean, with example values and good vs bad night patterns.
February 3, 2026CPAP Alternatives: What Are Your Options?
Explore proven CPAP alternatives including oral appliances, Inspire, positional therapy, and surgery. Learn who qualifies and how they compare.
February 2, 2026What Is AHI? Apnea-Hypopnea Index Explained
AHI (Apnea-Hypopnea Index) measures breathing disruptions per hour of sleep. Learn what counts as a normal AHI, the AHI severity chart, and how to read it.
February 1, 2026