From the SomniCharts Learn library · Upload your CPAP SD-card data and get a plain-language read of your night — no desktop install, across ResMed, Philips, Löwenstein, BMC, and Hoffrichter. Read the full article → https://www.somnicharts.com/learn/online-cpap-data-analyzer Related reading: CPAP Data Tools & Apps, How to Read Your CPAP Data: A Plain-English Guide to AHI, Leak Rate & Pressure, How to Download CPAP Data from Your SD Card (ResMed, Philips, Löwenstein, BMC, Hoffrichter), OSCAR Alternatives: Best Web-Based CPAP Analysis Tools (2026), SomniCharts vs SleepHQ: Cloud CPAP Reporting Compared Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · EPR, ramp, and climate control explained — and how your data proves whether your comfort settings are actually being delivered. Read the full article → https://www.somnicharts.com/learn/resmed-epr-ramp-comfort-settings Related reading: CPAP Machines & Devices, ResMed AirSense 11 Data: What Your SD Card Holds (and myAir Hides), CPAP 95th-Percentile vs Median Pressure: What the Numbers Mean, CPAP Ramp and EPR Explained: Comfort Settings in Your Data, APAP vs CPAP vs BiPAP: Machine Modes and the Data Each Produces Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · SleepyHead was discontinued in 2019 and became OSCAR. Learn your options for reading CPAP SD-card data today, including a simpler cloud route. Read the full article → https://www.somnicharts.com/learn/sleepyhead-discontinued-alternative Related reading: CPAP Data Tools & Apps, OSCAR CPAP Software Guide — and the Easier Cloud Alternative, OSCAR Alternatives: Best Web-Based CPAP Analysis Tools (2026), Online CPAP Data Analyzer: Upload Your SD Card and Understand Your Night, How to Download CPAP Data from Your SD Card (ResMed, Philips, Löwenstein, BMC, Hoffrichter) Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · The DreamStation 2 encrypts its SD-card data, so OSCAR can't read it. Learn why — and which tools can, now that DreamMapper has shut down. Read the full article → https://www.somnicharts.com/learn/dreamstation-2-encrypted-data Related reading: CPAP Machines & Devices, Philips DreamStation 1 & System One: SD Card Data and How to Read It, Philips Respironics Recall, Explained Neutrally — and Your Data, myAir & DreamMapper Limitations: Why Your CPAP App Isn't Enough, Switching CPAP Brands? Keep Your Data History Across Vendors Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · Mask and mouth leaks ruin comfort and corrupt your AHI. Learn the leak thresholds, why a low AHI can be a lie, and how to fix common leaks. Read the full article → https://www.somnicharts.com/learn/how-to-fix-cpap-mask-leaks Related reading: Troubleshooting & Optimizing CPAP, CPAP Leak Rate: What's Acceptable and How to Fix High Leaks, Mask Off & Large-Leak Events: Why Your CPAP Report Shows Gaps, CPAP Dry Mouth and Mouth Breathing: How to Stop It Tonight, CPAP Mask Types and Fit: Nasal, Pillow, and Full-Face Compared Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

Three different engines with three different jobs. They are often confused, so: SomniScan — the deep pass over a night's waveform Where the Daily view draws what the machine recorded, SomniScan goes back over the high-resolution flow data itself and looks for what the machine's own scoring did not flag. Its output is a set of findings about a specific night with the evidence attached. SomniPattern — the pass across many nights A single night is noise; twenty nights is a signal. SomniPattern looks for repetition: events clustering at the same hour, a channel drifting week over week, nights that group into recognisable types. It answers "is this a pattern or was that one bad Tuesday?". Somni-UARS — the specific hunt for upper-airway resistance Flow limitation and airway resistance do not always produce scoreable apneas or hypopneas, which is exactly why they get missed. This engine looks at breath morphology for that signature rather than at the event count. What they all have in common They read the same imported data you can see. Nothing is inferred from outside your account. They produce observations, not diagnoses. A finding is a place to look, and a good thing to raise with your clinician — it is not a verdict, and it does not replace a sleep study. They are part of the advanced tier. Locked tiles say which one they need. Bring findings here if you want help reading them. Bring them to your clinician if you want to act on them. Nothing on SomniTalk is medical advice. Talk to your own clinician before changing therapy.

From the SomniCharts Learn library · The myAir score is 0-100 but mostly usage hours — and it hides leak, flow limitation, and event-type detail. Learn what the score means and what it omits. Read the full article → https://www.somnicharts.com/learn/myair-score-explained Related reading: CPAP Data Tools & Apps, ResMed AirSense 11 Data: What Your SD Card Holds (and myAir Hides), myAir & DreamMapper Limitations: Why Your CPAP App Isn't Enough, CPAP Flow Limitation: The Hidden Metric Beyond AHI, CPAP Event Types Decoded: Obstructive, Central, Hypopnea & RERA Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · Excess weight, male sex, age, family history, and nasal congestion all raise sleep apnea risk. Learn the factors you can change and the ones you can't. Read the full article → https://www.somnicharts.com/learn/sleep-apnea-risk-factors Related reading: Understanding Sleep Apnea, Sleep Apnea Symptoms: Signs You Might Need a CPAP, What Is Sleep Apnea? Types, AHI, and Severity Explained, Untreated Sleep Apnea Risks: Why the Numbers Matter, Sleep Apnea and Your Heart: Hypertension, AFib, Stroke & Diabetes Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · Low AHI but still exhausted? Hidden flow limitation, RERAs, leaks, or non-apnea causes may be at play. Learn what to check before losing hope. Read the full article → https://www.somnicharts.com/learn/still-tired-on-cpap-good-numbers Related reading: Troubleshooting & Optimizing CPAP, CPAP Flow Limitation: The Hidden Metric Beyond AHI, RERA and Flow Limitation: The Events That Don't Show in Your AHI, UARS (Upper Airway Resistance Syndrome): The Diagnosis Your AHI Misses, CPAP Mask Leaks & Mouth Leak: Causes, the Data Threshold, and Fixes Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · A high AHI on CPAP can mean mask leak, supine sleep, emergent central apneas, or substances. Learn the causes and how your data reveals yours. Read the full article → https://www.somnicharts.com/learn/why-is-my-ahi-high-on-cpap Related reading: Reading Your CPAP Data, What Is a Good AHI on CPAP? AHI Ranges and Residual AHI Explained, CPAP Leak Rate: What's Acceptable and How to Fix High Leaks, Central Apneas Showing Up on CPAP: Treatment-Emergent CSA Explained, Is Your CPAP Pressure Too High or Too Low? Signs and the Data Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · Learn to read the CPAP flow rate waveform: rounded breaths are healthy, flat-topped breaths signal flow limitation. The most revealing CPAP chart. Read the full article → https://www.somnicharts.com/learn/cpap-flow-rate-waveform Related reading: Reading Your CPAP Data, How to Read Your CPAP Data: A Plain-English Guide to AHI, Leak Rate & Pressure, RERA and Flow Limitation: The Events That Don't Show in Your AHI, CPAP Flow Limitation: The Hidden Metric Beyond AHI, CPAP Event Types Decoded: Obstructive, Central, Hypopnea & RERA Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · Mask-off and large-leak periods create gaps and unreliable AHI in your report. Learn why machines can't score events through a big leak. Read the full article → https://www.somnicharts.com/learn/mask-off-large-leak-events Related reading: Troubleshooting & Optimizing CPAP, CPAP Mask Leaks & Mouth Leak: Causes, the Data Threshold, and Fixes, CPAP Leak Rate: What's Acceptable and How to Fix High Leaks, Why Is My AHI High on CPAP? Causes and How to Find Yours, Why Does My AHI Change Night to Night? Normal Variation Explained Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · OSCAR is the free, powerful desktop CPAP analyzer — with real friction. Learn what it does, its limits, and the no-install cloud alternative. Read the full article → https://www.somnicharts.com/learn/oscar-cpap-software-guide Related reading: CPAP Data Tools & Apps, OSCAR Alternatives: Best Web-Based CPAP Analysis Tools (2026), How to Read OSCAR Charts in Plain English (AHI, Leaks, Pressure), SleepyHead Is Gone — What to Use Now to Read Your SD Card, Online CPAP Data Analyzer: Upload Your SD Card and Understand Your Night Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · A stuffy nose can make CPAP miserable. Learn the causes of CPAP nasal congestion and the humidification, mask, and ENT-backed fixes that help. Read the full article → https://www.somnicharts.com/learn/cpap-nasal-congestion Related reading: Troubleshooting & Optimizing CPAP, CPAP Dry Mouth and Mouth Breathing: How to Stop It Tonight, CPAP Mask Types and Fit: Nasal, Pillow, and Full-Face Compared, CPAP Mask Leaks & Mouth Leak: Causes, the Data Threshold, and Fixes, Can't Tolerate CPAP? A New-User Adjustment and Claustrophobia Guide Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · Unlike the DreamStation 2, the original DreamStation and System One store unencrypted, readable data. Learn where the SD card is and how to analyze it. Read the full article → https://www.somnicharts.com/learn/dreamstation-1-data-guide Related reading: CPAP Machines & Devices, Philips DreamStation 2: Why Its Data Is Encrypted and Your Options, Philips Respironics Recall, Explained Neutrally — and Your Data, Switching CPAP Brands? Keep Your Data History Across Vendors, How to Download CPAP Data from Your SD Card (ResMed, Philips, Löwenstein, BMC, Hoffrichter) Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · Sleep apnea is linked to high blood pressure, atrial fibrillation, stroke, and type 2 diabetes. Learn the heart connection and when to get screened. Read the full article → https://www.somnicharts.com/learn/sleep-apnea-heart-cardiovascular-risk Related reading: Understanding Sleep Apnea, Untreated Sleep Apnea Risks: Why the Numbers Matter, Cheyne-Stokes Respiration & Periodic Breathing: The Heart Connection, What Is Sleep Apnea? Types, AHI, and Severity Explained, Who Gets Sleep Apnea? Risk Factors You Can and Can't Change Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · UARS causes RERAs and flow limitation without big oxygen drops, so AHI looks normal but you feel awful. Learn the symptoms and how it's diagnosed. Read the full article → https://www.somnicharts.com/learn/uars-upper-airway-resistance Related reading: Understanding Sleep Apnea, RERA and Flow Limitation: The Events That Don't Show in Your AHI, CPAP Flow Limitation: The Hidden Metric Beyond AHI, AHI vs RDI: Why Two Numbers Measure Your Sleep Apnea, Still Tired on CPAP With Good Numbers? Reasons and Next Steps Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

This is the category for "here is my night, what am I looking at?". Before you post an image, take thirty seconds to make it safe to publish. Crop or blank these out Your name and the profile name, wherever they appear (usually top of the page). Your email address and any account identifier. The device serial number. Serials appear on device and settings panels and in some export views. They identify your specific machine. Dates, if you would rather not publish your calendar. The shape of a night reads fine without them. Anything belonging to somebody else — a clinic letter, a second person's profile, a family member's data. Keep these in — they are the whole point The chart itself: flow, pressure, leak, events. The scale on each axis. A waveform without its axis cannot be read. The time span you are showing. "One night" and "one month" produce very different-looking pictures. How to ask well Say what you expected to see and what surprised you. Say what changed recently — new mask, new pressure, a cold, a different room. Ask about a specific stretch: "the 40 minutes around 03:15", not "thoughts?". What you will get back Observations, pattern-spotting and questions. Not a diagnosis, and not a pressure prescription — nobody here can safely give you either, however confident they sound. Nothing on SomniTalk is medical advice. Talk to your own clinician before changing therapy.

From the SomniCharts Learn library · Usage hours aren't the same as effective therapy. Learn how compliance hours differ from quality therapy and how to read short or fragmented nights. Read the full article → https://www.somnicharts.com/learn/cpap-usage-hours-compliance Related reading: Troubleshooting & Optimizing CPAP, CPAP Compliance Report: How to Get One for Your Doctor or Insurance, Can't Tolerate CPAP? A New-User Adjustment and Claustrophobia Guide, How to Read Your CPAP Data: A Plain-English Guide to AHI, Leak Rate & Pressure, Why Does My AHI Change Night to Night? Normal Variation Explained Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.