I don’t think burn-in should be an issue, but backlight failure over time might be. I really think (and have suggested) that when Jibo goes to sleep, rather having the screen on just to show the slit of an eye is wasteful. The screen should turn off. In my dev testing on the old sdk, I created a sleep skill that just lightly pulsed the light ring. I think i used grey as the color. It pulsed from off to about 20% brightness very slowly. Just to show that Jibo was still alive.