Tonight's verdict and latest bedtime
The home screen shows the verdict, the latest bedtime and how much budget is left, with at least one numeric reason.
One question, answered: can you stay up tonight, and what is the latest bedtime. The verdict is derived from your wake anchor, seven-day sleep debt and last night's sleep, with the weights, thresholds and reasons stated openly.
The home screen shows the verdict, the latest bedtime and how much budget is left, with at least one numeric reason.
See shortfall, balance and surplus on a rolling seven-day window instead of another sleep-stage chart.
No watch is required. Add any night by hand, then compare last night with tonight's plan in the morning.
Health and calendar are optional read-only sources. No account, cloud sync, analytics, advertising, in-app purchase or remote AI.
StayUp offers general scheduling guidance. It is not medical advice, diagnosis or treatment, and it does not claim to monitor, improve or cure any condition. You can decline health and calendar access and keep using manual entry.