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Amazon.co.jp: Philips SmartSleep SmartSleep Deep sleep headband White HH1610/02 : Health & Personal Care
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Brain-science products roll out despite ethical, validity concerns | The Asahi Shimbun: Breaking News, Japan News and Analysis
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PhilipsLiveFrom on Twitter: "Put your sleep to work! Track your sleep improvement and patterns through the Philips Smart Sleep headband and app. #IFA2018 #makelifebetter https://t.co/EWUAGmZTL0" / Twitter
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