Get the quality rest you deserve using the Garmin Index sleep monitor. Designed to be worn on the upper arm, this smart band helps you better understand how your body recovers by tracking sleep stages, score, and more. Plus, its smart wake alarm gently vibrates to wake you at the optimal time. Sleep smart, stay sharp—every single day—with the help of this Garmin Index sleep monitor. | Garmin Index Sleep Monitor Smart Band - Small / Medium - Black