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.