One score, 0 to 100
Built from how long you slept against your own norm, deep and REM sleep, and how calmly you slept through. The same formula on every device.
Sleep tracker for iPhone & Apple Watch
One honest score every morning, your sleep stages, heart rate and snoring — and a calm explanation of what in your day changed your night.
iPhone and Apple Watch first. Android and Wear OS next.
Every morning
No dashboards to decode. Open Starpillow, see how you slept and what to keep doing.
Built from how long you slept against your own norm, deep and REM sleep, and how calmly you slept through. The same formula on every device.
A clear map of the night: deep, core and REM sleep, awakenings, heart rate, and the moments you snored.
Tag your day with one tap — coffee, a workout, a late dinner. Starpillow compares similar nights and tells you what actually matters for you.
Influence
Generic advice says “no coffee after noon”. Starpillow looks at your nights and shows what really moves your score — and by how much.
Trends
Every dot is a night. See your rhythm across seasons, compare months and years, and notice the streaks worth keeping.
Apple Watch
Your morning summary, a smart alarm that wakes you in light sleep, and a quiet recording screen that lasts the whole night.
How it works
Wear your Apple Watch to bed. Starpillow reads your night from Apple Health.
Coffee, gym, late dinner, a glass of wine — one tap each, in the evening or in the morning.
A score, the shape of your night and one clear hint about what changed it.
Privacy
Sleep is personal. Starpillow is built so it doesn’t need to know who you are.
Scores, stages and influence are calculated on your device, not on our servers.
Starpillow reads only the sleep and heart data you allow, and you can revoke it anytime.
No advertising trackers and no account to sign up for. Your data is never sold or shared.
FAQ
Starpillow works best with an Apple Watch, which measures sleep stages and heart rate. Without a watch, the iPhone app still logs bedtime and wake-up, tracks your tags and shows how your days affect your nights.
Half of the score is how long you slept compared with your goal. The rest comes from your share of deep and REM sleep and from how much of your time in bed you actually slept. The same formula runs on iPhone, Apple Watch and, later, Android.
On your devices and in Apple Health. Starpillow analyses it on your iPhone and does not upload your nights to our servers.
Only if you turn on snore detection. Sound is analysed on your iPhone and is never uploaded; you can switch it off or delete recordings at any time.
Starpillow is in development for iPhone and Apple Watch. Write to support@starpillow.app and we will let you know the day it is in the App Store.
Yes. Android and Wear OS come after the iPhone release, with the same sleep score so your history stays comparable.
Starpillow is coming to iPhone and Apple Watch.