Garmin Index Sleep Monitor – Smart Upper Arm Sleep Tracking Band

• ✔ Two sizes: S-M fits arm circumference 8.5"–13" (21.6–33 cm), L-XL fits 12.5"–17.5" (31.8–44.5 cm)
• ✔ Comfortable, breathable upper-arm band for all-night wear
• ✔ Tracks sleep score, sleep stages, HRV, breathing variations & more
• ✔ Syncs data with Garmin Connect™ app for full health insights
• ✔ Up to 7 nights of battery life with typical use

THE MOST COMFORTABLE SLEEP YOU’VE EVER TRACKED

For a more comprehensive view of your fitness and recovery, the Garmin Index Sleep Monitor is the lightweight smart band that tracks your sleep while maximizing comfort. Designed for overnight wear on your upper arm, it captures detailed metrics without disrupting your rest.

What You’ll Love

Sleep Tracking – Get insights into your sleep score, sleep stages, HRV status, and more so you can better understand how well you recovered.

Comfortable Design – Worn on the upper arm, this lightweight, breathable band is available in two sizes so you can get the data you need without sacrificing comfort.

Seamless Data Syncing – Syncs automatically to the Garmin Connect™ app. Wear a compatible Garmin smartwatch during the day or a heart rate monitor during workouts for a complete health picture.

Breathing Variations – Uses Pulse Ox to help you better understand changes in your breathing patterns as you sleep.

Sleep Data Integration – Perfect for those who don’t wear a smartwatch to bed, providing complete sleep data for training readiness, recovery time, and more.

Women’s Health Tracking – Uses skin temperature to improve period predictions and past ovulation estimates. Track your cycle or pregnancy with guidance in the Garmin Connect app.

Better Sleep, Better Recovery

• Continuous heart rate sampling for accurate resting heart rate
• HRV status to better understand overall health
• Smart wake alarm that vibrates at the optimal time
• Skin temperature tracking for environmental, activity, or health changes
• Pulse Ox sensor for blood oxygen monitoring during sleep
• Body Battery™ energy monitoring for day/night energy trends
• Stress tracking to identify calm, balanced, or restless nights
• Respiration tracking for overnight breathing patterns

Machine Washable

Cleaning is simple — remove the module and toss the band in the washing machine.

What’s in the Box

• Garmin Index Sleep Monitor (S-M or L-XL)
• Charging/data cable
• Documentation

Choose your preferred size before checkout.