Alarm getting disarmed automagically

I wake up and the alarm is off. Look at history and it states my phone disarmed it. I was asleep with the phone in the next room. This is a little concerning. It happens regularly. Any ideas?

This means you have enabled Bluetooth disarm and are arming Away.

If you use Bluetooth disarming, do not arm Away while still home. Anything that would cause your phone to lose bluetooth connection and then reconnect will disarm the system, including reboots/updates.

More info here.

Well I need to arm away as that is the main reason we have the system (egress windows in unfinished basement and main level in a two story). What are my other options? Where are the bluetooth disarming settings? I do not even remember seeing them or setting them. Thanks!

You can turn off Bluetooth disarm in bluetooth settings: