Ask an inmate:
https://amp.sacbee.com/news/california/article240396741.html
EDIT/TLDR: highly effective
https://amp.sacbee.com/news/california/article240396741.html
EDIT/TLDR: highly effective
"every half hour with pipe-like electronic devices that cause loud clanging noises"
seems to be the specific relevant factor."Stanford University sleep medicine professor who says in a court-filed declaration that Lipsey “is exposed to unrelenting noise that is out of his control that can further (fuel) his insomnia and potentially worsens his health.”