The Index Sleep Monitor provides detailed overnight insights without the need to wear a watch to bed. Designed for comfort, it’s worn on the upper arm with a lightweight, breathable band available in two sizes and is machine-washable for easy care. With up to 7 nights of battery life, it tracks sleep stages, , and respiration, helping you understand how well your body recovers. For those who wear compatible Garmin devices during the day, it fills in sleep data to complete your overall health profile in the Garmin Connect app. Breathing variations and skin temperature trends offer added context, including past ovulation estimates and menstrual insights. A smart wake alarm gently vibrates to wake you at an ideal time in your sleep cycle. Whether you're focused on improving recovery, better understanding your health patterns, or gaining a more complete picture of your well-being, the Index Sleep Monitor fits seamlessly into your routine.(This is not a Medical Device) Bundle Items Include: Garmin Index Sleep Monitor, L/XL USB Wall Charger Adapter White Cube Microfiber Cleaning Cloth