@ben999 : I would like to see what the hardware looked like and where the various components were installed -- ie: at the location of the old doorbell and if any changes were needed at the doorbell exterior location.

I had a sense sleep monitor by hello.is.
It used an accelerometer in a small disk that clipped onto a pillow. As is the case with all devices dependant on the cloud, it instantly transformed from a $130 sleep monitor to a worthless paperweight when the company went out of business.