Fortuity SleepLast night, in one sentence. Tonight, one thing to do.
Fortuity Sleep reads the night your Apple Watch recorded, compares it with your own last 30 nights, and tells you what it meant and what to change tonight. You get the reason behind the number.
Good fortune comes to those that track. Part of the Fortuity family from Epiphani Studios.
You wake up wanting to know two things. Most trackers answer neither.
Was last night good or bad, and what should you do about it? A wall of graphs and a score out of 100 leaves you to work that out on your own, before coffee. Fortuity Sleep answers both questions on the first screen you see, every morning.
"Seventy-eight. Is that good?"
A score with no reason attached tells you how you did, never why, and never what to change. Fortuity Sleep names the cause and hands you one action for tonight.
"Deep sleep: 0h 0m."
When a watch records your sleep but not its stages, many apps print a zero. That zero sends you looking for a problem with your sleep when the gap was in the data. Fortuity Sleep says "not recorded", so you can tell a gap in the data from a problem with your sleep.
A verdict you can read in four seconds, and the evidence right under it.
Every morning opens on one sentence about your night and one thing to do tonight. Under it sits the evidence: the measurements the verdict came from, written out so you can check them yourself.
You slept under your own norm.
Tonight: aim to be asleep about 1h 20m earlier.
You went to bed later than you usually do.
Tonight: start winding down at your usual hour; steady bedtimes help more than sleeping in once.
A steady night, nothing to act on.
Some mornings the right advice is none, and Fortuity Sleep says so plainly.
Your night was broken up.
Tonight: keep the room dark and cool, and skip alcohol within three hours of bed.
Deep sleep was a small share of the night.
Tonight: an earlier bedtime buys more deep sleep, because deep sleep comes early in the night.
You got more sleep than usual.
Your watch saw a long night compared with your own recent nights.
See where the night went: deep early, REM late, and every waking.
Each stage gets its own row, deepest at the bottom, so the shape of the night reads at a glance. Deep sleep should cluster early and REM should grow toward morning; when that pattern breaks, you can see where.
And when your watch recorded the night but not its stages, the breakdown says "not recorded", never zero. Zero appears only when the stages were measured and that stage genuinely did not happen.
Compared with you, and nobody else.
Eight hours is somebody's average. Fortuity Sleep learns yours: after seven nights it builds your norm from your own last 30, and every verdict measures last night against it. A short night means short for you.
Bedtimes are read on a clock, the way you live them: 11:50pm and 12:10am are 20 minutes apart, so a late night shows up as late, and the comparison never lands on lunchtime.
Use another sleep app too? Your night still counts once.
Apple Health stores every app's copy of the same night. Add them up and seven hours becomes fourteen. Fortuity Sleep picks one recorder per night, the one with the stage breakdown, usually your watch, and sets the copies aside.
The choice is made fresh every night and noted under the night itself whenever a second copy was set aside, so the total you read is always one recording. Naps go through the same check, so an afternoon nap logged by two apps is still one nap.
Your watch recorded the night. Now it tells you about it.
The Apple Watch app reads last night straight from the watch, so the answer is there the moment you wake up: hours asleep, the morning's headline, tonight's action, and deep, REM and core in three tiles. On iPad, the same mornings fill a wide screen.
Your watch works on its own: it runs the same engine, with the same rules and the same personal norm, on the nights it holds.
Aim to be asleep about 1h 20m earlier tonight.
On iPad
The morning screen, the shape of the night and your trends, in a readable column centered on the larger screen, in portrait or landscape.
On iPhone
Tonight, Trends and Settings in three tabs. Pull down to re-read Apple Health at any time; it re-reads on its own every time you open the app.
Trends that show the one habit worth changing.
Two weeks or 30 nights at a time: how long you slept against your norm, short nights marked in amber, and a bedtime chart that shows how steady your schedule really is. Steady bedtimes are the habit most people can actually control.
Time asleep against your norm
A bar per night, your own median drawn across it, short nights called out so the pattern is obvious.
Bedtime consistency
When you actually fell asleep, night by night, with the spread between your earliest and latest bedtime as one number.
Naps on their own line
An afternoon nap is counted as a nap, never folded into last night's total.
Every number on the screen, defined in one line.
Asleep
Every minute your watch recorded you in core, deep, REM or unstaged sleep, from the moment you fell asleep to your final waking.
Efficiency
Time asleep divided by the time from falling asleep to your final waking. Lying awake reading before sleep does not count against you.
Wakings
Awake stretches of five minutes or more after you first fell asleep. A turn-over is not a waking.
Deep
The slow-wave stage that clusters in the first half of the night. Shown as a share of your sleep, on nights recorded with stages.
REM
The dreaming stage that grows toward morning, so a cut-short night costs REM first.
Your norm
The median of your own last 30 nights of three hours or more, switched on after seven, with last night left out so it is never compared with itself.
Install tonight. Read your first morning tomorrow.
Go to bed without logging anything or pressing a button. Your watch does the recording; Fortuity Sleep does the reading.
Install on iPhone
The Apple Watch app installs alongside it. Open Fortuity Sleep and connect Apple Health; it asks to read sleep, heart and breathing data, and asks to write nothing.
Wear your watch to bed
With Sleep Focus or a sleep schedule on, Apple Watch records your stages: deep, REM and core. That is the data every verdict is built from.
Wake up to the answer
Your first morning shows last night in one sentence. From the seventh night on, every verdict compares last night with your own last 30.
For the mornings when you need an answer instead of a chart.
You woke up tired and want to know why
The morning sentence names the cause it can see: a short night, a late bedtime, a broken night or a light share of deep sleep, each against your own norm.
Your bedtime drifts
Weekends and late work nights push bedtime around. The late bedtime verdict and the bedtime chart show exactly how far it moved, and tonight's action brings it back.
You already track with another app
Keep it. When two apps write the same night to Apple Health, Fortuity Sleep counts it once and notes it under the night.
You nap
Naps get their own card and never inflate last night's total, so a 40-minute afternoon nap reads as exactly that.
You like to check the work
Every verdict carries its evidence: the hours, the bedtime, the wakings, the share of deep sleep. You can see how each verdict was reached.
You check your wrist first
The Apple Watch app has the night, the headline and tonight's action ready before you reach for your phone.
Rules decide your verdict. The language model puts it into words.
Every morning sentence comes from written rules you can read on the screen. Apple's on-device model, running on your iPhone, turns the finished verdict into plain English, and it is checked before you see it.
Rules decide what the night means
Short night, late bedtime, broken night, low deep sleep, or steady. Each verdict carries the measurements it came from.
Apple's on-device model writes one sentence
It receives the finished verdict and a word budget, never raw numbers to reinterpret. On iPhones without Apple Intelligence, the rule's own sentence appears.
Every sentence is checked
A sentence that adds a number not in the evidence, a diagnosis, or an exclamation mark is replaced with the rule's own sentence.
Fortuity Sleep reports what your Apple Watch recorded and compares it with your own nights. It is a sleep tracker, not a medical device. Breathing readings use Apple's own classification, and a night in the elevated band points you to your doctor.
What a morning looks like in each app.
Each rival described in its own words, from its own App Store page, with its price as listed there.
| Fortuity Sleep | AutoSleep | Sleep Cycle | |
|---|---|---|---|
| The morning summary | One sentence about last night, plus one action for tonight | "Sleep Rating: a consolidated rating score of your sleep" | "Get daily stats to help you understand your rest", plus a sleep goal and score |
| Compared against | Your own last 30 nights | Your history and your "sleep bank balance" | "Long-term trends" and "global benchmarks" |
| Apple Watch app | Yes, reads the night on the watch | Yes, and optional | Yes |
| Price | Free to install today | $8.99, no subscription | Free, Premium in-app purchases from $2.99 to $57.99 |
Rival details and prices read from each app's US App Store page on Sunday, October 4, 2026. Full comparison.
Answered plainly.
What does Fortuity Sleep need to work?
An iPhone on iOS 26 and an Apple Watch on watchOS 26 that you wear to bed. The watch records the night into Apple Health, and Fortuity Sleep reads it from there. Turning on Sleep Focus or a sleep schedule makes the watch record your stages.
Will it tell me I got zero deep sleep when the watch missed it?
No. A stage the watch did not record reads "not recorded". Zero appears only when the watch recorded your stages and that stage genuinely did not happen.
Who writes the sentence about my night?
Written rules decide what last night means. Apple's on-device model, running on your iPhone, puts that verdict into one sentence. A sentence that adds a number not in the evidence, or a diagnosis, is replaced with the rule's own sentence.
I already use another sleep app. Will my nights count twice?
No. When two apps write the same night into Apple Health, Fortuity Sleep counts it once, from the source that recorded the stage breakdown, usually your watch.
Is it a medical device?
No. It reports what your watch recorded and compares it with your own nights. Breathing readings use Apple's own classification, and a night that lands in the elevated band points you to your doctor.
How long before it knows my normal?
Seven nights. From then on, each comparison uses up to your last 30 nights.
Wake up to a reason, not a riddle.
Fortuity Sleep installs through Apple's TestFlight today. Leave the email on your Apple Account and your invitation arrives there.