Sliced open a generic (but quite nice!) sleep mask I got on Amazon and put the microcontrollers and batteries in. I wore it through the night! I should've created a little boundary between the 2 microcontrollers because the whole time I was afraid they would touch each other and cause a short circuit somehow. Anyway, it worked out just fine and my "simulated sunshine" morning light-alarm was amazing.
As for the movement data, it was honestly not great and I need to iterate on the movement detection algorithm more to improve it.