RestTally

RestTally is a sleep debt calculator and rest planning app designed for people who want a clearer view of recent sleep balance. With permission, RestTally reads Apple Health sleep, HRV, and resting heart rate summaries. When Health data is missing, you can add a manual sleep entry. RestTally estimates recent sleep debt and turns it into a simple tonight plan with target duration, bedtime, wake time, and practical repayment steps. Main features: - Sleep debt balance - Apple Health sleep context - Manual sleep entry - Tonight repayment plan - Optional AI explanation - English and Chinese language switch Disclaimer: RestTally provides general sleep planning guidance only. It does not provide medical diagnosis, treatment advice, or professional medical services. Sleep guidance sources shown in the app: - CDC: About Sleep, https://www.cdc.gov/sleep/about/index.html - American Academy of Sleep Medicine and Sleep Research Society consensus recommendation, https://jcsm.aasm.org/doi/10.5664/jcsm.4758