By Rebecca Cairns, CNN
Updated 7:24 PM ET, Mon November 9, 2020TUO's bulb is intended to help energize users in the morning and calm them at night.
After finishing a film on Netflix and taking one final scroll through your Facebook feed, you go to bed. It's much harder to switch off your mind than a screen, though, and after tossing and turning, you finally drift off. When your alarm goes off, it feels like you barely closed your eyes.