Ivy is designed to be worn on your wrist and we recommend wearing it snugly and on your non-dominant hand.
Ivy is intended to be worn 24/7 to capture all of your data, especially during your sleep as the Readiness score is based largely on this information.
Once you first set up your Ivy, it is important to wear the device 30 nights in a row to establish your baseline and for Ivy to get to know your patterns and track your data most accurately.