Who maintains this site
This site and the Sleep or Die app are developed and maintained by Jianxi Yang. The content focuses on reducing phone distractions before bed, evening habits, and Apple's Screen Time capabilities. It does not provide medical diagnosis or treatment.
How we write and review
- Each page answers one clear question and provides a direct answer near the beginning.
- Health-related facts are checked against public health institutions and official technical documentation.
- We do not claim to cure insomnia, guarantee sleep, or reset a body clock.
- Pages identify the author, publication date, and latest review date; important factual changes trigger an update.
- Product descriptions reflect the current public version and clearly explain iOS system boundaries.
Corrections and contact
If you find an error in a fact, link, or product description, email haojianxi@hotmail.com. We will review it and update the page when needed.