Privacy Policy
Last updated: October 2026. The short version: we collect nothing from our calculators.
What we collect
Nothing from the calculators. Every calculation on SleepMaply runs entirely in your browser (client-side JavaScript). The numbers you type — your bedtime, your age, your caffeine habits — never leave your device, are never sent to our servers, and are never stored, sold, or shared.
If you contact us by email, we receive only what you choose to send (your name, email address, and message), used solely to reply.
Cookies
We use a single first-party local storage entry to remember your dark/light mode preference. That's it — no tracking cookies of our own.
Advertising
SleepMaply may display ads served by Google AdSense or similar advertising partners. These partners may use cookies (including the DoubleClick cookie) to serve ads based on your visits to this and other sites. You can opt out of personalized advertising at Google's Ads Settings. Learn more in Google's advertising privacy policy.
Analytics
We may use privacy-friendly, aggregate analytics to understand which pages are popular. These tools do not identify you personally.
Children
SleepMaply is a general-audience site and does not knowingly collect personal information from children under 13.
Changes
If this policy changes materially, we will update the date above. Continued use of the site after changes means you accept the updated policy.
Contact
Questions about privacy: hello@sleepmaply.com.