There is no connection between the amount of deep sleep I get and the Orange Goggles (37.4 vs 37.7 min) The theory that I need to wind down more to get more deep sleep is not true. No matter how I sliced up the data it took about 50 minutes before I hit deep sleep.
In retrospect, this makes a little sense. If there were any problems with me and light...It is probably that I am not getting enough rather than too much. May explore more time in the sun in a future experiment.
So it must be interruptions that are taking me out of deep sleep.
There is clearly a connection between the number of wake ups, time awake, and deep sleep. The x-axis below is number of times to wake up. You can see amount of deep sleep decreasing as the number of wakes.
The trouble is the Sleep Mask doesn't appear to be doing the trick. It decreases the average number of wake ups (4.3 to 3.2 per night), but doesn't significantly change the amount of deep sleep (36.8 to 38 min night). It actually appears to have increased the amount of wake time (18 to 22.8 min).
My only guess is sound. I live in an urban area next to a train track. I haven't personally noticed noise in the night but it is all I got.
I'll start tonight wearing earplugs along with the sleep mask and see what happens.