My Q and A With Petteri Lahtela, Whose OURA Ring Will Track Your Sleep

Petteri Lahtela is the CEO and co-founder of OURA, a wearable device -- in the form of a waterproof ring -- that measures our well-being as we sleep. In answer to my questions, he shared his insights on the restorative power of sleep, the future of sleep technology, and how wearable devices can enhance the body-mind connection. What is the OURA ring, and why did you see a need for it? Our goal was to create a simple and comfortable way for people to learn how to be fully charged at the start of ...