Sleep cycle calculator (informational)
Enter a bedtime to get suggested wake times, or a wake time to get suggested bedtimes.
Result
Going to bed at 23:00 suggests waking around 06:30 or 08:00 to align with full cycles.
Example
Estimate wake-up or bedtime targets based on 90-minute sleep cycles in your browser. Values stay on your device; this is informational, not medical advice.
Going to bed at 23:00 suggests waking around 06:30 or 08:00 to align with full cycles.
Processed locally in your browser.
Methodology
Assumes ~90-minute cycles and a 15-minute sleep latency. This is informational only and not a medical recommendation.
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