Privacy Policy
Last Updated: June 18, 2026
Our Approach to Privacy
SleepCalc is designed to be private by default. We believe you shouldn't have to trade your privacy to use a simple sleep calculator.
What We Collect
Nothing. The sleep calculator runs entirely in your browser using client-side JavaScript. Your wake-up times, bedtimes, and nap preferences never leave your device. We do not collect, store, or transmit any of your inputs or results.
We do not use analytics services, tracking cookies, or any form of user tracking.
Third-Party Services
Currently, SleepCalc does not load any third-party services that collect user data. The only external resource we load is Google Fonts (for typography), which does not set cookies or track users.
Affiliate Links
SleepCalc does not currently use affiliate links. If we add affiliate partnerships in the future, we will clearly mark all affiliate links and update this policy.
Children's Privacy
Our service is not directed to children under 13. We do not knowingly collect personal information from children under 13.