The box isn’t a clock, and doesn’t show the time so that if Priscilla wakes up in the middle of the night, she knows she can go back to sleep without fear of sleeping too long.
Zuckerberg said the invention has so far worked better than he expected, and his wife is now able to sleep through the night.
“As an engineer, building a device to help my partner sleep better is one of the best ways I can think of to express my love and gratitude,” he wrote. “A bunch of my friends have told me they’d want something like this, so I’m putting this out there in case another entrepreneur wants to run with this and build sleep boxes for more people!”
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Since becoming a father, Zuckerberg has previously opened up how parenting has changed the way he runs his business.
“Having kids does change how you think about the world in a pretty dramatic way,” he said during a college town hall in March 2017, CNBC reported.
At the time, Zuckerberg and Facebook announced the company’s extension of its parental leave policy of four paid months to full-time employees of any gender and to same-sex couples.
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