It appears that the graphs (by far my favorite chart) simply display the duration of the tracking, and not the awake/asleep data or somnogram results.
Since I still get agressive tracking due to my phaser, this makes my fall asleep time unreadable, I simply get the time I went to bed, even to watch a movie.
Considering the duration of the tracking is the least useful of the tracking/asleep/movement data trinity, there’s potential for sweet sweet data analysis wasted.