How did you sleep? Find out with the Index Sleep Monitor. Comfortable, lightweight and worn on the upper arm, this sleep armband can capture sleep-tracking and recovery metrics — including sleep score, sleep stages and HRV status — so you can better understand how your body recovers each night (data presented is intended to be a close estimation of metrics tracked).

Using skin temperature, advanced women’s health tracking can provide more insight into your menstrual cycle, including better period predictions and past ovulation estimates (this feature is not intended to support conception, contraception or birth control and is not a medical device).

If you wear a compatible Garmin smartwatch during the day, your data will seamlessly sync via the Garmin Connect™ app for more insight into your health and fitness. Plus, get up to 7 nights of battery life.

Product features

• The Index Sleep Monitor continuously samples your heart rate throughout the night to provide your resting heart rate
• Gain a deeper understanding of your overall health through heart rate variability while you sleep
• Wake up more refreshed. The smart wake alarm gently vibrates to wake you at the optimal time
• See how your average skin temperature changes, which can be related to your recent activity, sleep environment, potential illness and more
• Track your blood oxygen saturation while you’re asleep
• See your energy levels so you’ll know when your body is charged or needs more rest. If you wear a compatible smartwatch while awake, get a more complete picture of your energy levels — night and day
• Find out if you’re having calm, balanced or stressful sleep
• See how you’re breathing throughout the night
• Cleaning the monitor is simple. Just remove the module, and toss the band into the washing machine

Contents

• 1 x Index Sleep Monitor
• 1 x Charging/data cable
• Documentation

Technical specification

• Band width: 63.5 mm (2.5”)
• Fits upper-arm circumference: 26–42 cm (10.5”–16.6”)
• Battery life: 7 nights with SPO2 during typical usage (8 hours of sleep)
• Strap material: Soft, stretchy, breathable mix. 70% nylon, 30% spandex
• Connectivity: BLE (Bluetooth Low Energy 5.0)