Different things will work for different households. The following thread was created based on questions about using motion sensor triggered lights in the bedroom, but a lot of the same ideas apply if you want to use motion sensors to change mode.
At our house, there is a motion sensor on the side of the nightstand pointing towards the bed so it canāt get accidentally triggered by anything. I trigger with an intentional hand wave as I am getting out of bed. So thatās one option.
The following thread covers ideas on automating good morning. Youāll see a lot of variation because it just depends on each particular householdās routine.
If and when smartthings ever releases the smart sleep sensor, which is a device that goes under the mattress and tracks sleep, that would be a good way unless youāre a household where people take naps during the day.