The live calculator reads your current local time in the browser, adds the settling buffer you choose, and calculates the next wake-up options for several planning durations. It does not pre-render a fake current time. Pick an option only after checking how it fits tomorrow’s fixed commitments and the amount of time actually available tonight.
Start with the time that is fixed for tomorrow. The calculator works backward or forward using your selected planning duration, the time you usually need to settle, and a separate wind-down window.
BedtimePilot uses adjustable cycle timing as a planning reference. Actual sleep architecture varies by person and night, and this tool does not measure sleep stages.
Important limitations
Results are planning estimates based on your times and adjustable settings. They do not detect sleep stages and are not medical advice. Do not reduce your sleep opportunity just to match a cycle count. Seek professional care for persistent sleepiness or sleep-health concerns.