Night Ledger
A private sleep diary
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Night Ledger is a personal sleep diary for iPhone, built hand in hand with a sleep medicine clinician to help people understand their sleep patterns to sleep better.
Log last night’s sleep in the morning, keep a personal history, and export a report when you want to share it with your clinician, therapist, or care team.
Everything stays on your device. There is no account, no iCloud sync, no analytics, and nothing is uploaded.
You can save a complete morning log, keep a draft, skip a day, or edit later. Trends cover 14, 28, and 90 days. Exports include PDF, CSV, and JSON. Reminders are local.
Night Ledger was designed with real clinical sleep diary workflows in mind, including insomnia care, CBT-I support, and sleep efficiency tracking.
Night Ledger does not diagnose, treat, prescribe, or recommend. It does not give medication guidance. It is a private tracking tool to help you organize your sleep information and review it with a qualified clinician when appropriate.
Ribbon taps open the time adjustment sheet again, so you can drag marks to set times.
The developer, Auster Chen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Auster Chen
- Size
- 2.5 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Alcohol, Tobacco, Drug Use or References
- Copyright
- © World seed, LLC