Sleep smarter and feel more refreshed with Sleep Cycle Bedtime Calculator. This iPhone app helps you calculate the best time to wake up or go to bed based on sleep cycles. Each sleep cycle is about 90 minutes, and it is recommended to get 5-6 cycles for optimal rest. For example, if you want to wake up at 7:30 AM, sleeping at midnight for 5 cycles would be ideal.

With Sleep Cycle Bedtime Calculator, you can also customize your fall asleep time if you don't immediately fall asleep. Additionally, the app offers Apple Watch support, allowing you to access its features conveniently from your wrist. Whether you need to adjust your wake-up time or determine the best time to go to bed for a specific number of sleep cycles, Sleep Cycle Bedtime Calculator has you covered.