Inspect Your Sleep in High Definition
Explore your Apple Health sleep data down to the second with smooth timeline zooming, explicit device source filtering, adaptive night boundaries, and crisp timeline image sharing — all stored 100% on-device.
SleepDaddy Interactive Simulator
Built for Sleep Data Purists
Everything you need to inspect, compare, and understand your nightly sleep architecture with uncompromised precision.
High-Precision Stepped Timeline
Continuous tracking of REM, Core, Deep, and Awake stages with microsecond precision and fluid pinch-to-zoom timeline geometry.
Explicit Source Filtering
Easily switch between or isolate sleep data from Apple Watch, Oura Ring, sleep tracking mats, or third-party iOS apps.
Brief Awake Spike Smoothing
Visually filter out 1-minute micro-awakes for a cleaner sleep stage profile without altering underlying HealthKit totals.
Adaptive Night Boundaries
Dynamically adjusts night cutoff boundaries around core sleeping hours so shift work or late nights stay intact as single sessions.
100% Local & Private
No accounts, zero tracking, and zero telemetry. All your HealthKit sleep preferences stay 100% local on your iPhone or iPad.
Viewport Image Sharing
Render and export elegant, high-resolution timeline cards directly to the iOS Share Sheet for easy sharing with doctors or coaches.
Designed for Complete Data Ownership
SleepDaddy reads your HealthKit sleep records directly on your device. We do not operate servers, collect telemetry, or transmit your health metrics anywhere. Your local preferences remain securely inside your device's local UserDefaults database.
Strictly Read-Only
Never modifies or writes back to your HealthKit database. Your original samples stay untouched.
Zero Cloud Storage
No accounts, logins, or cloud databases. Your sleep analysis never leaves your iPhone.
Native Swift 6 Engine
Built natively using modern SwiftUI and Swift 6 structured concurrency for high-speed rendering.
Ready for High-Definition Sleep Inspection?
Join the SleepDaddy public TestFlight beta today to experience full control over your HealthKit sleep data on iOS 26+.
Join TestFlight Beta Requires iOS 26.0 or later. Completely free during public beta.