Japanese Lofty has announced pillow that will analyze the depth and quality of your sleep by head movement. Maybe I'm just an old-timer but I prefer to wake up and determine how well I slept based upon how grumpy I am. If you didn't sleep well the pillow will suggest taking powernaps throughout the day. And if you consistently have problems sleeping well, the pillow will suggest drinking heavily. This product will be out later this year for roughly $390.