Latest, 15 Oct 2026:5 usersMove the mouse over the chart for any month
Ratings count
monthly, 11 months
Latest, 15 Oct 2026:1 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Sleep Calculator
Sleep Calculator helps you plan your optimal sleep and wake times using proven 90-minute sleep cycles.
Whether you’re going to bed now or planning ahead, this simple tool helps you wake up refreshed and avoid grogginess by aligning with your body’s natural rhythm.
Key features:
• Multilingual interface with easy flag-based switching
• Offline “Lite” mode — works even without internet connection
• Lightweight, privacy-safe, and mobile friendly
• No cookies, no user accounts, no ads inside the extension
How it works:
Choose whether you want to go to sleep or wake up at a specific time, and the calculator instantly shows ideal sleep or wake-up times based on full sleep cycles.
It’s the easiest way to improve your sleep quality and start every day feeling refreshed.
🌙 Website: https://mysleepcalculator.net
📧 Support: support@mysleepcalculator.net
🔒 Privacy Policy: https://mysleepcalculator.net/privacy-policy