Any workaround for this…?

So setting the system to Home, sets just the front and back door contact sensors on. However, our furry friend sometimes likes to wake in the middle of the night, to go outside. Now inevitably forget to disarm, as it’s normally very very early (late) in the morning, open back door, and siren goes off and wakes everyone up! Is there any workaround that anyone has found for this scenario? I have SmartThings, and used to arm that similar overnight, but that could be automatically disarmed if walked in front of a certain motion detector on way downstairs, then rearmed after all does shut, no motion, between certain times again. Wondering if anything similar. Thanks