Sleep Cycles Alarm Calculator
Sleep smarter. Feel more refreshed.
Calculate the best time to wake up or when to go to bed. It's based on sleep cycles. They're about 90 minutes each and it's good to get 5-6 cycles.Sleeping at midnight for 5 cycles? Wake up at 7:30 AM. Need to wake up at 6:00 AM, but want 6 cycles? Then hit the bed at 9:00 PM.
Questions?
Feedback and questions are welcome by email. Or message me on Twitter and Mastodon.Scheduling alarms requires iOS 26 and a purchase.Sleep analysis requires sleep data from Apple Health and an Apple Watch for sleep tracking. Sleep Cycles doesn't track sleep itself.Full sleep analysis requires a purchase.Privacy: Sleep Cycles itself doesn't track anything. For purchases Sleep Cycle uses Superwall, which tracks some data to enable Sleep Cycle Pro purchases on the Apple App Store. Please refer to the linked privacy policy of Superwall for more details.