Privacy Policy
Last Updated: November 2025
Our Privacy Commitment
At SleepDebtFree, your privacy is paramount. We've built this application with a privacy-first, local-first architecture. All your sleep data stays on your device. We do not collect, store, or transmit your personal information to our servers.
If you want supplemental planning aids without storing data online, consider keeping printable charts from RoutineKit or brainstorming private reflections in MindMapFlow.
What Data is Collected
Data Stored Locally on Your Device
The following data is stored exclusively in your browser's IndexedDB (a local database):
- Sleep diary entries (bedtime, wake time, sleep duration, quality ratings)
- Active recovery plans and schedules
- Sleep efficiency calculations
- Chronotype assessment results
- User preferences and settings
This data never leaves your device. It is not uploaded to our servers or shared with anyone. You have complete control and can delete all data at any time through the application settings.
Analytics Data
We use Ahrefs Web Analytics to understand how visitors use our site. This analytics service collects:
- Page views and navigation patterns
- Approximate location (country/region level only)
- Device type and browser information
- Referral sources (how you found our site)
Important: Analytics data is anonymized and does not include your sleep data or personal health information.
What Data is NOT Collected
We explicitly do NOT collect:
- Your name, email address, or contact information
- Your sleep data or health information
- Your specific sleep schedules or recovery plans
- User accounts or login credentials (we don't have user accounts)
- Precise geolocation or GPS data
Data Storage and Retention
Local Storage: Your sleep data is stored in your browser's IndexedDB database. This data persists until you:
- Manually delete it through the application
- Clear your browser's data/cache
- Uninstall your browser
We have no ability to access or delete this data - only you can.
Data Sharing and Third Parties
We do not sell, rent, or share your personal information with third parties. The only third-party service we use is:
- Ahrefs Web Analytics: For anonymized website analytics (as described above)
Export and Portability
You can export all your sleep data at any time in JSON or CSV format through the application. This allows you to:
- Create backups of your data
- Share data with healthcare providers
- Transfer data to another device or application
Cookies and Tracking
We use minimal cookies for:
- Remembering your dark mode preference
- Anonymous analytics (Ahrefs)
We do not use tracking pixels or third-party advertising cookies.
Children's Privacy
SleepDebtFree is intended for adults aged 18 and over. We do not knowingly collect information from children under 18.
Changes to This Policy
We may update this privacy policy from time to time. Any changes will be posted on this page with an updated "Last Updated" date.
Contact
If you have questions about this privacy policy, please review our Terms of Service.
Your Data is Safe
Remember: Your sleep data never leaves your device. We built SleepDebtFree this way intentionally to protect your privacy. You are in complete control of your data.