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Sleep Score explained
The Apnealytics Sleep Score is a single number from 0 to 100 that summarises how last night's CPAP therapy went. It is a composite of your AHI, your usage hours and your leak, and it exists so you can glance at one figure before you look at the details. This guide explains what goes into it, how to read it, and what it deliberately does not try to measure.
Why a score at all
Three numbers describe a CPAP night well: how many events got through (AHI), how long you wore the mask (usage), and how well it sealed (leak). Each is on a different scale and each can be good while another is bad. A low AHI on a three-hour night is not a success. Low leak and long usage with an AHI of 12 is not either.
A score folds those three into one direction: higher is better. It is a convenience for the morning glance and for spotting trends, not a replacement for the underlying numbers, which sit directly beneath it on the dashboard.
What goes into the Sleep Score
The Sleep Score is built from three components, each scored against a target and then weighted into the total.
AHI. Your machine-estimated residual AHI for the night. Below the normal threshold of 5 events per hour scores well; the component falls as AHI rises through the mild, moderate and high bands. The curve is steeper at the low end, so the difference between 2 and 6 matters more than the difference between 20 and 24.
Usage hours. Time with the mask on and the blower running. The component rises with hours and is capped at a full night, so there is no reward for lying awake with the mask on past the point of a complete sleep. The 4-hour mark used by the compliance rule is a floor, not a target; the score keeps rewarding you well past it.
Leak. Your leak 95th percentile for the night, scored against the large-leak threshold your machine uses. Low leak scores fully; the component falls as P95 approaches and exceeds the line, and time in large leak counts against it.
exact component weights and scoring curves — current implementation to be confirmed with the product team before publication. Placeholder wording above avoids stating specific percentages.
The weights lean toward usage and AHI, with leak as a modifier, on the reasoning that the first two are the outcomes and leak is the most common reason they go wrong. The three component scores are shown beneath the total so you can always see which one moved.
How to read it
Treat the Sleep Score like a weather summary. It tells you whether to look closer.
High and steady. Therapy is doing its job and you are wearing it. Look at the details when you feel like it.
Dropped suddenly. Open the night. One of the three components fell; the bars show which. A leak spike, a short night and an AHI jump each have different fixes.
Drifting down over weeks. The 30-night trend in Trends will show whether it is leak creeping up as a cushion ages, usage slipping, or AHI rising. Each is a different conversation.
High score, still tired. The score measures therapy delivery, not how you feel. See the section below on what it cannot tell you.
The Heads up panel on the dashboard adds context in words: a score that is well below your own recent average is flagged, with the component that caused it named.
What it is not
The Sleep Score is not a sleep quality score. It does not know your sleep stages, how many times you woke, how long you took to fall asleep or how rested you feel. Your CPAP machine cannot measure any of those, so the score does not pretend to. Apps built on wearables score "sleep" using movement and heart rate; this score measures therapy.
It is not a clinical measure. No clinician uses it, no guideline references it, and it should not be quoted in place of AHI, usage and leak. The compliance report and share links give your clinician the underlying numbers, not the score.
It is not comparable across people. A score of 80 for someone with severe apnea and a leaky full-face mask and a score of 80 for someone with mild apnea and nasal pillows mean different things. Compare your score with your own history.
And it is not a target to optimise. The point of the score is to stop you missing something. Chasing 100 by lying in bed longer with the mask on is not better therapy. Use the components as the guide.
How it compares with myAir
ResMed's myAir app also produces a 0 to 100 score, built from usage, mask seal, events per hour and the number of times the mask came off. It is a reasonable summary and many people are used to it. The main differences are that myAir's score weights usage heavily and reports it with limited detail, while Apnealytics shows the components beside the total, lets you see the score over any period, and sits on top of the full data from your SD card rather than the summary the machine sends over the air. See myAir score explained for a factual walkthrough.
Where it appears
The Sleep Score is the first tile on your dashboard, with last night's value, the three component bars and a 30-night sparkline. It is in the Nights list as a column so you can sort and scan. In Trends it is a chartable series over 30, 90 or 365 nights, and in period-over-period comparison it gives a one-number summary of before and after a change. The Year in Sleep recap uses it to pick out your best and worst months.
It is available on the free plan for your last 30 nights and across your full history on Pro.
Goals and streaks
You can set a Sleep Score goal in the Goals and streaks panel. Hit it on consecutive nights and the streak counts up. People find this motivating in the early weeks of therapy, when the habit is fragile. The goal is yours to set; Apnealytics does not pick one for you.
Questions people ask
What is the Apnealytics Sleep Score?
A single 0 to 100 number summarising last night's CPAP therapy. It combines your machine-estimated AHI, your usage hours and your leak P95, each scored against a target and weighted into the total. The three component scores are shown beneath it so you can see which one moved. It is a convenience for the morning glance, not a clinical measure.
What is a good Sleep Score?
There is no universal threshold. The score is most useful compared with your own recent nights: a value near your 30-night average is a normal night, and a drop of 10 or more points is worth opening. Broadly, a controlled AHI, a full night of use and low leak together produce a high score. The components tell you what to fix when it is low.
Does the Sleep Score measure sleep quality?
No. Your CPAP machine cannot detect sleep stages, awakenings or how you feel, so the score does not include them. It measures therapy delivery: how many events got through, how long you wore the mask and how well it sealed. A high score with poor-quality sleep is possible and is worth raising with your clinician.
Why did my Sleep Score drop?
One or more of the three components fell. Open the night and look at the component bars: a short leak bar means leak P95 rose or time in large leak increased; a short usage bar means a short night or mask-off periods; a short AHI bar means more events than usual. The Heads up panel names the cause in plain words when a night is well below your average.
Is the Sleep Score the same as the myAir score?
No. Both are 0 to 100 and both use usage, events and leak, but they are built differently. myAir's score comes from the summary your ResMed machine sends over its modem, weights usage heavily and shows limited detail. The Apnealytics Sleep Score is built from the full SD card data, shows its components beside the total, and can be charted over any period.
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