Looking for the recipe to a good night's sleep? According to Matteo Franceschetti, his smart bed company Eight Sleep has the secret in its temperature-control technology. The company's beds can be cooled or heated between 55 and 115 degrees Fahrenheit ー either manually by the user or automatically through the company's biometric tracking and temperature-control technology. Users can also connect the bed to Amazon Alexa or Google Home devices ー both to set the bed temperature or get feedback on the quality of their sleep. If you share your bed, each side can be regulated separately. "Forty-three percent of couples fight around temperature," Franceschetti said, which allows his company to solve a second problem: "No more fighting."