We asked experts how you should be using different kinds of white noise to block out the world and actually get a good night's sleep.

In the near term, things will remain red, yellow, and green, but this white light concept proves that AVs will one day upend every aspect of driving in the U.S. and throughout the world.

“A light shade of pink works with most everything. We think of it as a more colorful white! Pink decor can be whimsical, classic, soothing, or the focal point of a room,” he says.

Pink noise is best for: People who are light sleepers. Try it: Check out Honeywell's Dreamweaver Sleep Fan, a small bedside fan that emits pink noise along with the oscillation and cooling of a fan.