Nokia that bought digital health firm Withings back in 2016 relaunched health devices under its own brand last year. This week at the CES 2018 it has introduced Nokia Sleep, an advanced sensor that offers personalized sleep analysis and offers smart home control through IFTTT integration. Nokia also said that its Health Mate app will now work with Alexa so users can manage their health and fitness with their voice via an Alexa Skill through Alexa-enabled devices.