Not the user you were responding to, and you’re correct about these thermostats, but not all devices retain functionality without internet connectivity. For example, these $2000 dollar ‘smart’ beds.

Some reported on Reddit that they were woken up by their bed suddenly readjusting their preferred sleeping temperatures – some soaring as high as 110 degrees Fahrenheit. Others say their bed became stuck at an extreme incline. According to The Washington Post, some beds also blinked flashing lights and sounded wake-up alarms.

These things became contorted, overheating (or freezing) bricks when AWS went down last week and the owners had no control over them without the app.