# sleep onset

> transition from wakefulness into sleep

**Wikidata**: [Q7539762](https://www.wikidata.org/wiki/Q7539762)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sleep_onset)  
**Source**: https://4ort.xyz/entity/sleep-onset


## References

1. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)