> ## Documentation Index
> Fetch the complete documentation index at: https://docs.junction.com/llms.txt
> Use this file to discover all available pages before exploring further.

# historical.data.sleep_cycle.created

> Webhook event sent when Junction finishes the historical backfill of sleep cycle data for a newly connected user.



## Related topics

- [Deprecations](/changelog/wearables/deprecations.md)
- [historical.data.menstrual_cycle.created](/event-catalog/historical.data.menstrual_cycle.created.md)
- [daily.data.sleep_cycle.created](/event-catalog/daily.data.sleep_cycle.created.md)
- [historical.data.sleep.created](/event-catalog/historical.data.sleep.created.md)
- [historical.data.sleep_apnea_alert.created](/event-catalog/historical.data.sleep_apnea_alert.created.md)


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