Launched this week
Sleep Hours Calculator
Wake up refreshed using natural 90-minute sleep cycles.
5 followers
Wake up refreshed using natural 90-minute sleep cycles.
5 followers
Use our free sleep hours calculator and sleep calculator to find the best time to sleep or wake up. Plan natural sleep cycles with zero sign up.
Free
Launch Team
ampmKanban workflow for your coding agents. Build your backlog async from anywhere
Promoted
Hi Product Hunt! 👋
I made Sleep Hours Calculator because waking up tired after a long sleep is annoying. Often, the problem is not how much you sleep. Instead, you wake up in the middle of deep sleep. This causes morning grogginess.
This tool helps you count forward or backward using natural 90-minute sleep cycles. It automatically adds 15 minutes to help you fall asleep. It also has quick tools for power naps, coffee cutoffs, and jet lag.
It is completely free. It works right inside your web browser. You do not need to sign up or give your email.
What tools or features should I build next? I want to hear your ideas! 🚀