WakeUp, Sleep Cycle Calculator

Waking up groggy usually isn't about how long you slept. It's about when the alarm went off. WakeUp plans your night in 90-minute sleep cycles, so your alarm rings at the end of a cycle and you wake up feeling rested. PLAN TONIGHT IN SECONDS • Turn the dial to choose when you go to bed or when you need to be up. WakeUp shows the times that line up with full sleep cycles. • Includes the time it takes you to fall asleep, so the math matches your real night. • Set a sleep goal and WakeUp recommends the night that reaches it. • Sleep Now and Nap get you an alarm in one tap. AN ALARM YOU CAN TRUST • Real system alarms that ring even in Silent mode or a Focus. • A countdown on the Lock Screen and in the Dynamic Island while you sleep. • Changing an alarm never leaves you without one: the new alarm is set before the old one is removed. • Choose your alarm sound and a gentle sound for naps. WIND DOWN • Tonight screen and widget: wind-down starts an hour before bedtime, then it's time to sleep. • Calming sleep sounds: ocean, rain and brown noise. • A Sleep Focus filter keeps WakeUp's reminders quiet while you rest. SEE HOW YOU REALLY SLEPT • Connect Apple Health to see each night, your sleep stages, consistency, sleep debt and a simple score. • WakeUp learns your usual bedtime and how long you take to fall asleep, all on your device. • One clear next step each week, not a wall of charts. SIRI AND SHORTCUTS • Ask Siri "When should I wake up with WakeUp", "Set an alarm with WakeUp" or "Start a nap with WakeUp". WakeUp always asks before it replaces an alarm. WAKEUP PRO • Ask WakeUp: chat about your sleep and get a per-night overview, powered by on-device Apple Intelligence on supported iPhones. • Use your own alarm sound. • No ads. Everything else is free. Private by design: your sleep data stays on your iPhone and in Apple Health. WakeUp is not a medical device. If you have ongoing trouble sleeping, talk to a doctor.