iOS sleep companion

Understand your nights

CapySleep is a calmer way to see Apple Health nights, optional on-device sleep and naps, and a capybara that reflects how you slept — with no CapySleep account.

Download on the App Store See how it works

Free to download. Estimates based on leading studies.

CapySleep Home with weekly sleep rings and a capybara companion

On your iPhone Motion and audio estimates stay on-device. Optional private iCloud.
No account No CapySleep sign-in and no developer-operated server.
Health + manual nights Apple Health sleep, overnight sessions, and naps in one place.
Companion, not a clinic Your capybara reflects how you slept. Capy Score is a wellness summary.

The app

Nights, naps, sounds, and a journal

Start overnight sleep or a power nap from the app. Optional on-device motion estimates while your phone is on the mattress, plus an optional microphone for nighttime sound events. Wind down with sleep-aid sounds, then write how you felt.

Tonight’s Sleep with a 9:00 AM scheduled wake, Start button, alarm, recording, and sleep-aid controls

Power Nap Start card with a 10-minute Quick Reset and sleep-aid controls

Journal entry with mood chips, handwritten notes, and Sage theme

Insights

See how the night unfolded

Review hypnograms, stage breakdowns, and Capy Score — a wellness summary, not a clinical score. Related heart rate, HRV, and blood oxygen can appear when you allow Apple Health.

Sleep stages hypnogram and time asleep versus time in bed

Capy Score wellness summary with duration, bedtime, interruptions, and mood

Overnight heart-rate graph and summary cards from Apple Health

Always nearby

Widgets and Live Activities

Keep an active sleep or power nap session on Lock Screen and Home Screen, then open a summary of the latest night.

Power Nap Live Activity on the Lock Screen with timer and sleep-aid playback

Latest Sleep Session widget preview with Add Widget

On-device first

Your nights stay on your iPhone

CapySleep has no account and no developer-operated backend. Data stays on your device by default. iCloud sync is opt-in and uses your private CloudKit container. Apple Health samples are not included in that sync.

We do not sell personal or health data, and we do not use it for advertising or cross-app tracking.

Read the Privacy Policy

CapySleep Pro

Keep the library and history going

Free includes 3 sleep-aid sounds, 3 journal entries, and 3 saved sleep or nap sessions, plus basic sleep views. Pro unlocks the full sound library, Apple Music tracks, full Sleep Detail, unlimited history and journal entries, and recurring schedules.

Pro is an optional annual subscription billed by Apple. The price shown in the app is for your region. Deleting the app does not cancel the plan.

How Pro works

Sleep with a calmer companion

Get CapySleep on iPhone. Name your capybara, grant only the permissions you want, and start from Apple Health or a manual night.

Download on the App Store

CapySleep works with the Apple Health app on iPhone. When you allow access, sleep you already track can appear next to optional on-device nights and naps. The Health app keeps that information in one view, encrypted and protected with the passcode on your iPhone.

Understand your nights Z z z