Sleep monitor Garmin Index Sleep Monitor Black — heart rate, respiratory rate, battery-powered, USB, 41.7×37.6×7.8 mm

Garmin Index Sleep Monitor Black is a compact, battery-powered sleep-tracking device designed for home use. The device measures heart rate and respiratory rate during sleep and records physiologic signals to support basic sleep analysis. Its small footprint (41.7 × 37.6 × 7.8 mm) and included USB cable allow easy placement and periodic charging or data transfer. Supplied as a single unit, the sleep monitor integrates simple monitoring of nocturnal heart and breathing patterns to help users track overnight physiology.

Advantages

The sleep monitor provides continuous measurement of heart rate and respiratory rate during sleep without requiring a large bedside footprint. Battery operation with an included USB cable ensures flexible placement and straightforward recharging or connection. The device’s compact dimensions make it unobtrusive on a nightstand, while built-in sensors focus on the two core metrics—heart rate and respiration—that are commonly used in sleep and wellness tracking.

Suitable for

Key specifications

How to use

Place the Garmin Index Sleep Monitor near the bed or on a stable surface according to the manufacturer’s placement guidance so that sensors can reliably capture cardiac and respiratory signals. Ensure the device battery is charged using the included USB cable before use. Activate the monitor and allow it to run during sleep; after the monitoring period, review recorded heart rate and respiratory rate data using the compatible app or data interface supported by Garmin. Follow any device pairing or setup steps provided in the user documentation for initial configuration.

Recommendations

For consistent overnight measurements, position the monitor in a similar location relative to the sleeping person each night and keep the device charged. Avoid obstructing sensors and follow the manufacturer’s maintenance instructions. Use the recorded metrics as part of broader sleep and health monitoring and consult a healthcare professional if nocturnal heart rate or respiratory patterns raise concerns.