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.

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.

Last thing, and the one that matters most in week one: the point of all this is not the numbers. It is whether you feel better in a month than you do now. If you are struggling — genuinely cannot tolerate it, or you are lying awake fighting the machine every night — that is a thing to raise early rather than endure quietly. Masks get changed, pressures get reviewed, humidification gets adjusted, and all of that is normal early-therapy housekeeping done by the people looking after you. Nothing on SomniTalk is medical advice. Talk to your own clinician before changing therapy.

The shelf for this, in the order it is most useful: Still Tired on CPAP With Good Numbers? Reasons and Next Steps — the same question with the sourced version of the answer. CPAP Leak Rate: What's Acceptable and How to Fix High Leaks — the number to read next to the event count, and why. Why Does My AHI Change Night to Night? Normal Variation Explained — why the figure moves when nothing has changed. Nothing on SomniTalk is medical advice. Talk to your own clinician before changing therapy.