Privacy
We keep this short because we collect very little.
Calculators
All calculators run entirely in your browser. The times and numbers you enter are not sent to our server or stored by us.
Cookies and analytics
SleepGuru does not use analytics, advertising or tracking cookies. If you switch between light and dark mode, your choice is saved in your browser's local storage so the site remembers it; it never leaves your device.
Server logs
Like almost every website, our web server records basic technical information for each request (IP address, time, the page requested and your browser's user agent) to keep the site secure and working. These logs are used only for that purpose. The site is delivered through Cloudflare, which processes requests on our behalf.
If you email us, we use your message and address only to reply.