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Mark Zuckerberg builds 'sleep box' for wife Priscilla Chan
Updated : 6 years, 11 months ago IST
California [USA], Apr 29 (ANI): Being a mother is hard because until the kids are independent, keeping a check on them throughout the night is crucial. To help his wife Priscilla Chan sleep better, Facebook CEO Mark Zuckerberg built her a device he calls, "sleep box."
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