Thanks for the feedback. Oddly enough Kickstarter will not allow access to the FAQ module until we launch so these are just place holders for now. I totally agree that they need formatting help and they should be easier to navigate once live.
To address your sensor concerns, most people sleep with at least their face/head exposed, and we've found this to be one of the best indicators. So we recommend aligning the sensor with your pillow and then this should be a non-issue. However, the sensor is powerful enough to pick up some motion under the covers because it is based on heat. Furthermore, you can adjust the sensitivity via the App, which allows you to test various conditions. We have always found that with proper setup it works great.