, because the N2 stage is predominant (often making up more than 50 percent of a night’s sleep), normal, and an important aspect of sleep physiology, contai...

https://www.apple.com/jp/healthcare/docs/site/Estimating_Sleep_Stages_from_Apple_Watch_Sept_2023.pdf

5 77536-68-6 132207-32-0 Non-use All materials Insulator, filler REACH 1907/2006 and amendments Azo dyes, Arylamines, Anilines Appendix A 30 ppm total conte...

https://www.apple.com/jp/environment/pdf/Apple_Regulated_Substances_Specification_Sept2018.pdf