Sleep Cycle Calc

Sleep Cycle Calc is a lightweight sleep cycle calculator and tracker that helps you plan sleep times to wake up feeling refreshed. Core features: calculate optimal bedtimes and wake times based on 90-minute sleep cycles, log basic sleep duration and patterns, and set reminders or alarms with optional Health/Google Fit integration. Advantages include a simple one-screen workflow, customizable cycle length, and fast recommendations for shift workers, students, and busy parents. Keywords: sleep cycle calculator, sleep tracker, sleep analysis, sleep schedule.