A few comments on the examples:
* the Jawbone Up is well designed but it still falls under the "quantified self" tech, which as a category, relies solely on user attention, notwithstanding the data privacy concerns of sending sleep data to a 3rd party.
* Roomba. Roomba not only is calm tech (as per their definition), it _feels_ alive. The designers added the subtle touch of not getting it to clean in straight lines, it looks like it wanders and searches more dust to actually accomplish its duty. The motion patterns of the Roomba are a great design achievement, and I'd very much like to know how much thought has been put into them.
Early Roombas had no sensors so they implemented randomization in movement and bounces to allow it to cover the room. With newer models they received sensors and started to clean in straight lines - depending on the manufacturer it may be first around the edges and then straight. Similar to how a human would mow a lawn.