Sleep Calculator - SleepCal

Tired of waking up exhausted? It's not about sleeping longer—it's about waking up at the RIGHT time. Your brain cycles through 90-minute sleep stages. Wake up mid-cycle, and you'll feel groggy. Wake at the end of a cycle, and you'll feel refreshed. SleepCal calculates the perfect time for you. HOW IT WORKS 【WAKE UP MODE】 Tell us when you need to wake up. We'll show you the 3 best times to fall asleep—each aligned with a complete sleep cycle. 【SLEEP NOW MODE】 Going to bed now? We'll calculate the ideal wake times so you rise naturally refreshed. 【POWER NAP】 Need a quick recharge? Our smart nap timer helps you rest without oversleeping or ruining your night. FEATURES • Sleep Cycle Calculator based on 90-minute science • 40+ nature sounds & white noise for faster sleep • Custom alarm sounds—import your own music (Pro) • Reliable wake-up with Time-Sensitive Notifications • Apple Watch support for silent alarms • Minimalist dark UI—easy on your eyes at night • Privacy-first: all data stays on your device WHY SLEEEPCAL? We don't track your sleep. We don't need sensors. Just pure, science-based calculation to help you wake up feeling human again. Download now. Wake up better tomorrow. ABOUT SUBSCRIPTIONS SleepCal Premium unlocks custom alarms, exclusive sounds, and cloud sync. • Monthly: $4.99/month • Yearly: $19.99/year (Save 67%) Payment charged to iTunes Account. Auto-renews unless canceled 24h before period ends. Manage in Account Settings. Privacy: https://aipromptant.com/sleepcal/privacy-policy Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula