How could this little gadget dramatically improve your sleep quality? The Oura ring. I've been using the OURA Ring (and have been talking about it on the podcast) for quite some time. It's a tracking device that you wear on your finger. It measures your sleep, heart rate, heart rate variability, breathing pace, body temperature, and exercise. And loads of other stuff. I've found out some very interesting and unusual things using it. Listen on to find out more. By the way, if you want one of the new Oura Rings, use the code ZESTOLOGY to get $$$ off. These new rings look way thinner and less mafia-like than the old ones.