The Luna range is built by BMC Medical and sold under the React Health / 3B Medical brand, which is why the same machine has two names depending on where you bought it. Three card layouts turn up, and you select the card root for all three. 1. Luna G3X (and BMC G3 A20 / B20A on recent firmware) The card root holds files named after the machine's serial number — something like A31XXXXXXXX.idx, .evt, .set and .log, plus numbered waveform files .000, .001 and so on. You will probably also see nP3-… files (the machine's language packs) and a System Volume Information folder. All of that is normal. Select the whole card. 2. Luna G2S (the older Luna) The same serial-named files, but with a .USR file where the G3 platform has .evt. 3. Luna II / Hoffrichter POINT (ResVent format) A card with THERAPY and RECORD folders. The two questions we get most "My Luna G3X shows up as BMC Medical G3 A20." That is correct, and it is your machine. The device reports itself as a G3 A20; SomniCharts prints what the machine says rather than what the retail box says. Your data, charts and settings are complete — only the label differs. "My G3X card went to DropBox review from the phone." The Android app needs version 1.12 or newer to recognise the G3-platform layout. Update from Google Play and upload again, or upload the same card from the web app. Worth knowing: the G3 card format is newer than some other tools can read. If a different program refuses your card, that is not a sign the card is damaged. Nothing on SomniTalk is medical advice. Talk to your own clinician before changing therapy.

The Daily view stacks one night's channels on a shared time axis. Read it top to bottom and the night tells a story. Flow rate — the breath-by-breath trace. This is the channel every event is scored from, and the one worth zooming into. Flattened tops, a sawtooth, or a run of shallow breaths followed by a big recovery breath all look distinct once you have seen them. Pressure — what the machine delivered. On an auto machine, watch where it rises: a pressure that climbs and then holds is responding to something. Leak — the channel that invalidates everything else when it goes wrong. A high leak stretch means the machine's event scoring over that stretch is unreliable, so read leak first and events second. Event markers — apneas, hypopneas, and the machine's own extra event types. Their clustering is usually more informative than their count. Snore / flow limitation, where your machine records them. Oximetry (SpO2 and pulse), when a compatible oximeter recorded that night. Three habits worth having: Zoom in. A whole night squeezed into one screen hides everything interesting. Ten-minute windows around a cluster are where the answers are. Check the axis before you react. Charts auto-scale; a dramatic-looking excursion may be two units wide. Nights run noon to noon. A session starting at 1 a.m. on the 15th belongs to the 14th's night. This is deliberate and it is why "my night is missing" almost always resolves to "it is on the previous date". Post a night in Data Talk if you want a second pair of eyes — there is a topic there on how to share a screenshot safely first. Nothing on SomniTalk is medical advice. Talk to your own clinician before changing therapy.

Why can't I post yet? Posting requires a verified email address. Register, open the mail we send, click the link, and the posting categories open up. Until then you can read everything. The verification mail never arrived. Check spam and any "promotions" tab first. Then use the resend control on your account page. If it still does not arrive, some mail providers silently discard forum mail — post in Site Feedback from the account, or contact us through the SomniCharts site. Is my SomniTalk account the same as my SomniCharts account? No. They are separate systems with separate logins on purpose. Nothing you post here touches your therapy data, and nothing in your SomniCharts account is visible here. Using the same email address for both is fine; using the same password is not a good idea anywhere. Can I change my username? Ask in Site Feedback. Renames are done by hand because they rewrite every mention of you on the board. Can I edit or delete my own posts? Yes — edit and delete are available on your own posts once your account is verified. Edited posts show that they were edited; that is deliberate, so that a thread still makes sense after the fact. A post that other people have already replied to should be edited rather than gutted — leave the question standing so the answers still mean something. How do I delete my account? Ask in Site Feedback or by the contact route on the SomniCharts site. We remove the account and disassociate your posts. Note that we will not silently delete a long thread that other members contributed to — tell us if you want the content removed as well as the account, and we will talk it through. Do you sell or share what I post? No. The board stores your username, email address, posts and connection metadata, and that is it. See /privacy for the specifics, including how to ask for a copy or a deletion. Is the forum searchable from outside? Yes. Topics are public and indexed by search engines. Post accordingly. Something on the forum itself is broken. Site Feedback, please — not the SomniCharts bug category, which is for the app. Nothing on SomniTalk is medical advice. Talk to your own clinician before changing therapy.

Select the card root. Not DATALOG, not a single month folder — the whole card. A ResMed card (AirSense and AirCurve 10/11, S9) carries: DATALOG/ — the nightly detail, one folder per date, holding the high-rate waveform and event files. This is the bulk of the card and the part that takes time to import. SETTINGS/ — your therapy settings as the machine recorded them over time. STR.edf — the summary file: one row per night, covering usage, leak, AHI and pressure statistics. This is what makes a long history import quickly even when the detailed nights are pruned off the card. Identification.* — what the machine says it is. This is how the importer knows the model. Practical notes The card prunes itself. Machines keep a limited window of detailed nights but a much longer summary history. If your charts show a year of trends but only a few months of detailed waveforms, that is the card, not the import. Upload the whole card each time. Re-uploading is safe — de-duplication skips everything already present, and the new nights merge in. Don't reorganise the card. Moving files out of DATALOG breaks the date structure the importer reads. Cards over 5 GB go up in batches; the batches merge automatically. Oximetry, where you record it on a compatible setup, arrives with the nightly data and appears on its own tiles rather than in the flow charts. If a card refuses to be recognised, send it through the DropBox fallback rather than reformatting anything — that is the route that gets a layout looked at. Nothing on SomniTalk is medical advice. Talk to your own clinician before changing therapy.

From the SomniCharts Learn library · AHI naturally varies night to night. Learn what drives the swings, why one bad night isn't a crisis, and why trends beat single numbers. Read the full article → https://www.somnicharts.com/learn/ahi-changes-night-to-night Related reading: Troubleshooting & Optimizing CPAP, What Is a Good AHI on CPAP? AHI Ranges and Residual AHI Explained, Why Is My AHI High on CPAP? Causes and How to Find Yours, How to Read Your CPAP Data: A Plain-English Guide to AHI, Leak Rate & Pressure, How to Read CPAP Usage Hours and What 'Compliant' Really Means Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · AirCurve bilevel and ASV machines log IPAP, EPAP, and pressure support — uniquely rich data. Learn how to read it and what each mode records. Read the full article → https://www.somnicharts.com/learn/aircurve-bipap-asv-data Related reading: CPAP Machines & Devices, APAP vs CPAP vs BiPAP: Machine Modes and the Data Each Produces, ResMed AirSense 11 Data: What Your SD Card Holds (and myAir Hides), Central vs Obstructive Apnea: What 'Clear Airway' (CA) Events Mean, Periodic Breathing & Cheyne-Stokes on Your CPAP Chart Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · AHI vs RDI explained: RDI adds RERAs to the count, so it's always equal to or higher than AHI. Learn why a normal AHI can hide an elevated RDI. Read the full article → https://www.somnicharts.com/learn/ahi-vs-rdi Related reading: Understanding Sleep Apnea, What Is a Good AHI on CPAP? AHI Ranges and Residual AHI Explained, RERA and Flow Limitation: The Events That Don't Show in Your AHI, UARS (Upper Airway Resistance Syndrome): The Diagnosis Your AHI Misses, CPAP Event Types Decoded: Obstructive, Central, Hypopnea & RERA Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

Almost everyone starting CPAP is braced for the wrong thing. People arrive expecting the machine to be loud, and it isn't. They expect the pressure to feel like a hurricane, and mostly it doesn't. Then something nobody warned them about turns up instead — a dry mouth at 3 a.m., a red line across the bridge of the nose, the strange feeling of exhaling against something, water in the tube after a cold night, or the discovery that the mask is fine lying on your back and hopeless on your side. So: what actually surprised you in your first week? Post the thing you wish someone had told you before night one. New members read this thread more than any other, and the answer that helps them most is usually the small, unglamorous one. Two things worth saying out loud if you are in week one right now: The first fortnight is not representative. Adaptation is real, it is normal, and the numbers from those nights should not be read as a verdict on the therapy. "I gave up after three nights" is a very common story and not a shameful one. If that was you, come back and tell us what stopped you — often it is one fixable thing. Nothing on SomniTalk is medical advice. Talk to your own clinician before changing therapy.

Not rules. Just the things that, in practice, decide whether month one goes well. Nights 1–7 — get the mask right, ignore the numbers Wear it while you are awake first: an hour on the sofa teaches your face more than a bad night does. Fit the mask lying down, in the position you actually sleep in. Straps tightened sitting upright are almost always too tight. If you wake up and take it off at 2 a.m., put it back on. Partial nights still count. Nights 8–21 — start looking, gently Now the usage and leak numbers begin to mean something. Look at trends, not at any single night. Dry mouth, sore throat, or a whistling noise at the corner of your mouth usually points at mouth leak, not at the pressure. Rainout (water in the hose) is a temperature problem, not a humidity failure — the room is colder than the air you are breathing out. Day 30 — the conversation, not the conclusion Bring your own data to your follow-up. A month of nightly usage, leak and AHI trends is a far better basis for a conversation than "it's fine, I think". If something has been wrong for four weeks, it will not fix itself in the fifth. Say so. What would you add or cut? This list is meant to be edited by the people who lived it. Nothing on SomniTalk is medical advice. Talk to your own clinician before changing therapy.

Mask fit is the single biggest reason people stop using CPAP, and it is almost entirely a matter of face shape, sleeping position, and luck. What is perfect for one person is unusable for the next, so this thread is not a "best mask" poll — it is a catalogue of situations. Useful things to say when you post: Which type — nasal cushion, nasal pillows, or full face — and the model. How you sleep — side, back, front, or all three in one night. Side sleepers and back sleepers rarely want the same mask. What went wrong with the ones that failed — top-of-nose pressure sore, leak into the eyes, whistling, straps loosening, the frame catching on the pillow. What fixed it — a different size in the same model counts, and is often the answer. Two notes worth repeating: A leaking mask is usually too tight, not too loose. Over-tightening deforms the cushion and breaks the seal it was shaped to make. Cushions are consumables. A cushion that has gone soft and shiny will leak no matter how well you fit it. Nothing on SomniTalk is medical advice. Talk to your own clinician before changing therapy.

From the SomniCharts Learn library · Cheyne-Stokes respiration is a central breathing pattern strongly tied to heart failure. Learn what it is, why it matters, and when to see your doctor. Read the full article → https://www.somnicharts.com/learn/cheyne-stokes-heart-failure Related reading: Understanding Sleep Apnea, Periodic Breathing & Cheyne-Stokes on Your CPAP Chart, Central vs Obstructive Apnea: What 'Clear Airway' (CA) Events Mean, Obstructive vs Central vs Mixed Sleep Apnea: The Three Types, 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 · Need a CPAP compliance report for insurance or a DOT exam? Learn the 4-hour rule, the 70%/30-day standard, and how to generate a shareable report. Read the full article → https://www.somnicharts.com/learn/cpap-compliance-report Related reading: CPAP Data Tools & Apps, How to Read CPAP Usage Hours and What 'Compliant' Really Means, Online CPAP Data Analyzer: Upload Your SD Card and Understand Your Night, How to Read Your CPAP Data: A Plain-English Guide to AHI, Leak Rate & Pressure, Can I Adjust My Own CPAP Pressure? What the Data Can (and Can't) Tell You Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · Ramp and EPR make CPAP more comfortable — and show up in your pressure data. Learn what they do and how they affect the numbers you see. Read the full article → https://www.somnicharts.com/learn/cpap-epr-ramp-comfort-data Related reading: Troubleshooting & Optimizing CPAP, ResMed EPR, Ramp & Climate Control: Verify Your Comfort Settings, CPAP Aerophagia: Why Your Stomach Bloats and How to Address It, CPAP 95th-Percentile vs Median Pressure: What the Numbers Mean, 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 · Struggling to adjust to CPAP or feeling claustrophobic? Learn desensitization tips, what alternatives exist, and how to track your progress objectively. Read the full article → https://www.somnicharts.com/learn/cant-tolerate-cpap-adjustment Related reading: Troubleshooting & Optimizing CPAP, CPAP Ramp and EPR Explained: Comfort Settings in Your Data, CPAP Mask Types and Fit: Nasal, Pillow, and Full-Face Compared, CPAP Nasal Congestion and Stuffy Nose: Causes and Fixes, How to Read CPAP Usage Hours and What 'Compliant' Really Means Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · Understand 95th-percentile (P95) and median CPAP pressure, why ResMed uses 95% and Philips 90%, and what your pressure spread says about your settings. Read the full article → https://www.somnicharts.com/learn/cpap-95th-percentile-pressure Related reading: Reading Your CPAP Data, How to Read Your CPAP Data: A Plain-English Guide to AHI, Leak Rate & Pressure, APAP vs CPAP vs BiPAP: Machine Modes and the Data Each Produces, Is Your CPAP Pressure Too High or Too Low? Signs and the Data, ResMed EPR, Ramp & Climate Control: Verify Your Comfort Settings Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · You can have flow-limited breaths all night with an AHI of 0 and still feel exhausted. Learn what flow limitation is and why most apps never show it. Read the full article → https://www.somnicharts.com/learn/flow-limitation-hidden-metric Related reading: Reading Your CPAP Data, How to Read the CPAP Flow Rate Waveform (Flat-Top Breaths), RERA and Flow Limitation: The Events That Don't Show in Your AHI, UARS (Upper Airway Resistance Syndrome): The Diagnosis Your AHI Misses, Still Tired on CPAP With Good Numbers? Reasons and Next Steps Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · Periodic breathing and Cheyne-Stokes show up as a crescendo-decrescendo pattern. Learn what the CPAP flag means and why it needs a doctor's review. Read the full article → https://www.somnicharts.com/learn/periodic-breathing-cheyne-stokes Related reading: Reading Your CPAP Data, Central vs Obstructive Apnea: What 'Clear Airway' (CA) Events Mean, Cheyne-Stokes Respiration & Periodic Breathing: The Heart Connection, Central Apneas Showing Up on CPAP: Treatment-Emergent CSA Explained, How to Read the CPAP Flow Rate Waveform (Flat-Top Breaths) Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.

From the SomniCharts Learn library · A factual overview of the 2021 Philips foam recall, the silicone replacement, the DreamStation 2 safety notice, and what each means for your data. Read the full article → https://www.somnicharts.com/learn/philips-recall-explained Related reading: CPAP Machines & Devices, Philips DreamStation 1 & System One: SD Card Data and How to Read It, Philips DreamStation 2: Why Its Data Is Encrypted and Your Options, Switching CPAP Brands? Keep Your Data History Across Vendors, myAir & DreamMapper Limitations: Why Your CPAP App Isn't Enough Start the discussion below — questions, experiences, corrections welcome. Nothing here is medical advice.