Exposure to light before attempting to go to sleep can wreak havoc on your circadian rhythm. If that light happens to be the bluish kind that smartphones and computer screens emit, the effect can be even worse.
But concern over such dangers is no match for our collective smartphone addiction. Many of us have a tough time putting down our phones before bed and many of us grab for them soon after waking up, as this chart from Statista — based on data from Deloitte — shows.
Smartphone makers have tried to address the blue-light problem with special “bedtime” settings that adjust the light given off by their devices so that it’s more yellow — although it’s anyone’s guess whether that will actually improve sleep. Meanwhile, other companies and inventors have other techniques for encouraging a good night’s rest.
Arianna Huffington, for example, created a “phone bed” for people to tuck their devices in at night as they would their children. Resembling a miniature bed, the product has enough USB ports to charge 10 phones at a time and sells for for $49.95 on Thrive Global.
마이크 누델맨 / 비즈니스 인사이더