After some discussion we’ve decided to go with a six led style mask rather than the one of two leds of all the other sleep masks. A couple reasons but the main thinking is that with six leds we’ll be able to create more complex, recognizable patterns that should make it easier to pick the lights out while you sleeping. Often people who use masks report seeing the light patterns, but their brain will rationalize the lights into the lights of an ambulance or a disco party or some other crazy thing that is just normal enough in a dream to stop you from achieving lucidity. With six lights we can create all sorts of patterns to make it hard for the brain to create explanations. As a side bonus, more lights means people with various head sizes will still have their eyes fall into the LED area of the mask. You can see we’ve got the LEDs up and running, this is just before we added the two push buttons, and all running from a single coin cell.