Mark Zuckerberg built an incandescent wooden box to help his wife sleep

• Facebook CEO Mark Zuckerberg has built an incandescent wooden box to help his wife, Dr. Priscilla Chan, sleep better.
• The box emits a soft light from 6am to 7am every morning.
• "As an engineer, building a device to help my partner sleep better is one of the best ways to express my love and gratitude," wrote Zuckerberg.

Mark Zuckerberg has just posted a photo of his latest invention on Facebook and Instagram.

No, it's not related to social media. It is a wooden "sleep box" that shines faintly one hour each morning, between 6 am and 7 pm.

In his message, Zuckerberg wrote that his wife, Dr. Priscilla Chan, had inspired the invention. He wrote that Chan's sleep had become more difficult since the couple had two daughters together.

"She will wake up and check the time on her phone to see if the children will wake up soon, but knowing that the time is stressful and that she can not fall asleep" , wrote Zuckerberg.

The founder and CEO of Facebook wrote that the light of the box is "sufficiently visible so that if she sees it, she knows that the time is right for one of us to look for children, but weak enough for that light does not wake her if she does. " always sleeping. "

He added that he does not show the time, to prevent Chan from worrying about the time.

"Up to now, it has worked better than expected and she can now sleep all night," he said. "As an engineer, building a device to help my partner sleep better is one of the best ways to express my love and gratitude."

The publication has generated many comments online. The former Facebook director and angel investor, Dave Morin, called the device, "Genius".

Singer Lily Allen has taken a look at Facebook's controversial year by writing: "If your wife told you that white supremacy kept her awake at night, do you think you could design an algorithm for it? to disappear or to be very very weak? "

But Zuckerberg wrote that his social entourage was receptive to the idea: "A bunch of friends have told me that they would like something like that, so I put it in case another entrepreneur wants to start with that. and build sleep boxes for more people! "