Somnopsis: Sleep Data Explorer

Your sleep data is full of hidden patterns. Somnopsis makes them far easier to find.

If you sleep with an Apple Watch or another sleep tracker, Apple Health already holds a record of every night: every stage, every wake-up. Somnopsis turns that history into something you can explore more easily than ever before, so you can find the patterns a simple sleep score won't tell you. Show only the days and stages you care about, zoom into any hour, line nights up side by side, and see how each one compares with your own averages. All with a tap, a pinch, or a swipe.

WHAT DO YOUR BEST NIGHTS HAVE IN COMMON? More Deep sleep? Fewer wake-ups? Something other apps aren't showing you? Spot the standout nights in your history at a glance, including details most apps don't show like the combined totals of just the sleep stages you pick, or your longest stretch of sleep without waking.

HOW DOES YOUR DEEP SLEEP ADD UP? Somnopsis adds up each night's stages into a single bar: Deep, Core, REM, and Awake, all on the same time scale. Scroll down and compare night after night at a glance, with no need to piece totals together from a tangled timeline. Hide Core and Awake, and the bars stretch so REM and Deep fill the width, making small differences between nights stand out.

WHAT HAPPENS AT 4 A.M.? Pinch to zoom into any night, from the whole night down to a few minutes, and scroll through it hour by hour. The nights around it sit beside it on the same timeline and zoom with it. Drag sideways to slide back through weeks of nights, or pinch sideways to widen them. Hide everything but Deep with a tap, and you can see exactly when your Deep sleep happened across all of them. Swipe to another night and the timeline stays right where it is, with the new night widening into place.

HOW DO YOUR SATURDAYS COMPARE? Tap the days of the week you want to see, and the whole app follows. For example your history can show only Saturdays, where swiping jumps from one Saturday straight to the next, and the timeline lines them up next to each other. Then switch to weeknights and see how they differ.

IS LAST NIGHT NORMAL FOR YOU? See each stage, how many times you woke up, and your longest stretch of sleep without waking against your own average from the past 7 days, 30 days, year, or all time. Tap to switch between the difference, the percentage, and the average itself.

BUILT ON APPLE HEALTH Somnopsis reads the sleep data your Apple Watch or another source already saves to Apple Health. It doesn't record sleep itself. New nights load in the background as they arrive.

PRIVATE BY DESIGN Your sleep data never leaves your device. No account, no ads, no tracking.

Requires iOS or iPadOS 17 or later. Sleep stages require an Apple Watch or another device that records them.

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