I tried this out last night, reading and surfing in bed in the dark. Holding my n810 in my left hand, and floating my index finger over the sensor (which i somehow do unconsciously) seemed to work well. I put my IT in it's sleeve in the evening, and saw it wake up a couple of times, but because it was in its sleeve, it went back to sleep shortly. So far, I love this app! Thanks so much for your time on it!