Is it because they don't change the batteries on smoke alarms? I also saw that as the cause for African Americans having poor sleep in a recent study: https://sahanjournal.com/health/sleep-science-black-insomnia...
edit: removed abrasive language
edit: Love the immediate downvoting. Please present your evidence that hardwired smoke detectors has nothing to do with this.
Checks out
This looks like lamenting the inconveniences of smoke detectors. My point is that hardwired smoke detectors function more consistently than battery powered ones.