LaLume
iPadOS sleep transition — nightstand display, reading light, and HealthKit-aware dimming.
The Gap
The transition from reading to sleep is managed by nobody. Clock apps show the time. Sleep trackers analyse what happened after you woke up. Sound apps play audio until a timer expires. Night Shift warms your screen on a fixed schedule regardless of what you are doing.
None of these tools respond to the process of falling asleep in real time. The gap is not measurement — it is the transition itself.
The Approach
LaLume turns your iPad into a nightstand display and reading light, then manages the transition to sleep based on what your body is actually doing. When paired with Apple Watch, HealthKit biometric signals — heart rate variability, movement, respiratory patterns — drive gradual dimming that responds to real sleep onset rather than a fixed timer.
The result is a reading light that dims as you drift off, a clock that is visible when you glance but never intrusive, and a transition that happens without you having to decide when to stop reading.
Without Apple Watch
LaLume works as a manual nightstand display and reading light without Apple Watch. You set a dimming schedule or tap to dim. The core experience — a considered, calm display that respects the end of your day — does not depend on biometrics.
Privacy
LaLume reads HealthKit sleep and heart rate data on-device only. No health data is stored beyond the current session. No data leaves the device. There is no backend, no analytics, and no account.
FAQ
- What is LaLume?LaLume is an iPadOS app that manages the transition from reading to sleep. It turns your iPad into a nightstand display and reading light, then dims gradually as it detects you falling asleep via HealthKit signals from Apple Watch.
- Does LaLume require an Apple Watch?LaLume works without an Apple Watch as a manual nightstand display and reading light. HealthKit-aware automatic dimming requires an Apple Watch for real-time biometric signals.
- How does LaLume protect sleep?LaLume reduces screen brightness gradually based on biometric sleep signals rather than a fixed timer. It responds to what your body is actually doing, not what a schedule says you should be doing.
Status
LaLume is in active development for iPadOS.