Nightshift is built for the adjustment period — the first weeks and months on CPAP, when the therapy is sound and everything around it is still wrong. The method is deliberately small, because a log you have to make time for is a log you stop opening.
i. Log last night
Hours you kept the mask on, and one tag for how the night went: full night, leaked, took it off, or insomnia. Add a note if it deserves one. That is the whole entry — about ten seconds, done with coffee, before the night has finished being annoying.
You enter it yourself, so it works alongside any machine. Nightshift does not read your machine directly, and your log syncs only to your own private iCloud — we run no server that can read it. It can also read your sleep hours from Apple Health if you allow it, one-way.
ii. See where you actually stand
Most insurers keep covering the machine only if you use it at least four hours a night on most nights within an early window. The insights and calendar screens show your run of nights plainly, and the free web compliance calculator on this site does the insurance arithmetic in the open.
The chart is honest about noise. One short night after a cold or a late glass of wine is a short night. A slow drift across a fortnight is a signal, and it is named as one.
iii. Catch the leak before it wakes you
Tag a night as leaking and the pattern surfaces — which is usually enough to tell an over-tightened strap from a cushion that has hardened with wear from a mask style that was never right for a side sleeper.
A leak is not only a comfort problem. Air escaping means pressure escaping, so a leaking week and a bad-numbers week are usually the same week wearing two different faces.
iv. Take the week to your clinician
Nightshift keeps the record: hours, tags, notes, trends. It does not touch prescribed pressure or any setting — that dial belongs to your sleep clinician.
When the answer is clinical, the written week goes with you: what you tried, which nights were bad, and what the numbers did. Eleven minutes of appointment goes considerably further with that in hand than without it.
Why we made it
The clinic gives you a machine, a mask, and about five minutes. Then you go home and meet the four-in-the-morning version of the problem alone. Most people who abandon CPAP do it early, over things with a fix.
Nightshift is the record nobody was keeping: the hundred nights that decide whether the machine ends up beside the bed or in a closet, written down.
Educational only. Nightshift is not medical advice, diagnosis, or treatment, and it is not an FDA-cleared device. Your sleep clinician sets your pressure and your settings.