As a long time HN user may I offer a shameless plug about our product related to the Sam's sleep quality tips: If you are interested in improving sleep, our Ou

As a long time HN user may I offer a shameless plug about our product related to the Sam's sleep quality tips: If you are interested in improving sleep, our Oura ring (https://ouraring.com https://ouraring.com) is a beautiful smart ring that helps you track and improve your sleep. It also measures your body signals during the rest: resting HR, HRV and body temperature. Small form factor makes it comfortable to wear and the new generation 2 ring has 7 day battery life. We also have OAuth Cloud API and Oura Teams functionality for coaches.