This article by Faye Girsh, of the Hemlock Society of San Diego, is well worth reading, and perhaps filing, but it is too long to publish on this blog:
Ten Ways to Help Ensure a Peaceful Death
Only 10% of us will die in our sleep. For the rest, here is a list that can help facilitate a peaceful and painless end to life:
https://www.thegooddeathsocietyblog.net/2020/11/29/10-ways-to-help-ensure-a-peaceful-death/