Name: Garmin Index Sleep Monitor
Brand: Garmin

The most comfortable sleep you’ve ever tracked

For a more comprehensive view of your fitness and recovery, the Index Sleep Monitor is the lightweight smart band that tracks your sleep1 while maximising comfort.

Comfortable, breathable design worn on the upper arm
Up to 7 nights of battery life
Sleep tracking and recovery metrics
Breathing variations throughout the night
Skin temperature tracking for past ovulation estimates and more
Machine-washable band for easy cleaning

What you'll love

Sleep Tracking

How did you sleep? The Index Sleep Monitor gives you insight with sleep score, sleep stages, HRV status and more1, so you can better understand how well you recovered.

Comfortable Design

Worn on the upper arm, this lightweight and breathable smart sleep band comes in two sizes, allowing you to get the data you need without compromising comfort.

Seamless Data Syncing

The Index Sleep Monitor seamlessly syncs your data with the Garmin Connect™ smartphone app. If you wear a compatible Garmin smartwatch during the day or a heart rate monitor during workouts, your data will seamlessly sync via Garmin Connect for more insight into your health and fitness.

Breathing Variations

For a closer glimpse of your health, the breathing variations feature uses Pulse Ox to help you better understand shifts in your breathing patterns as you sleep.

Sleep Data Integration

Don’t wear your compatible smartwatch to bed? The Index Sleep Monitor can help fill in the gaps. It provides the sleep data needed for a more complete picture of your training metrics, including training readiness, recovery time and more.

Women’s Health

Using skin temperature, get more insight into your menstrual cycle, including better period predictions and past ovulation estimates3. Track your menstrual cycle or pregnancy plus get exercise and nutrition education in the Garmin Connect app.

Better Sleep, Better Recovery

Heart Rate

The Index Sleep Monitor continuously samples your heart rate1 throughout the night to provide your resting heart rate.

HRV Status

Gain a deeper understanding of your overall health through heart rate variability while you sleep

Health Status

Look for changes in your health data that could indicate added stress to your body, so you can know when you’re trending away from your usual range. This feature is currently available in beta.

Smart Wake Alarm

Wake up more refreshed. The smart wake alarm gently vibrates to wake you at the optimal time.

Skin Temperature

See how your average skin temperature changes, which can be related to your recent activity, sleep environment, potential illness and more.

Pulse OX Sensor

Track your blood oxygen saturation while you’re asleep.

Body Battery Energy Monitoring

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.

Stress Tracking

Find out if you’re having calm, balanced or stressful sleep.

Respiration

See how you’re breathing throughout the night.

Machine Washable

Cleaning the monitor is simple. Just remove the module, and toss the band into the washing machine.

Specification:

What You'll Love

Sleep Score and Insights: Yes
Pulse Ox Blood Oxygen Saturation: Yes
Water Rating: ATM

General

Strap Material: Soft, stretchy, breathable mix. 70% Nylon, 30% Spandex
Case Material: Plastic
Physical Size:

Module: 41.7 x 37.6 x 7.8 mm (1.6″ x1.5″ x 0.3″)
Sleep band S-M: 326 x 63.5 x 0.55 mm (12.8″ x 2.5″ x 0.02″)
Sleep band L-XL: 452 x 63.5 x 0.55 mm (17.8″ x 2.5″ x 0.02″)

Weight:

Module: 14.5 g (0.5 oz)
Sleep band S-M: 15.8 g (0.6 oz)
Sleep band L-XL: 20 g (0.7 oz)

Battery Type: Lithium ion
Battery Life: 7 nights with SPO2 during typical usage (8 hours of sleep)
Charging Method: Garmin proprietary plug charger

Clock Features:

Alarm Clock: Yes

Health & Wellness Monitoring

Resting Heart Rate: Yes
Heart Rate: Yes
Respiration Rate: Yes
Body Battery Energy Monitor: Yes
Sleep: Yes
Breathing Variations: Yes
Women's Health: Yes
Past Ovulation Estimates: Yes
Skin Temperature: Yes

Sensors

Pulse Ox Blood Oxygen Saturation Monitor: Yes
Accelerometer: Yes (for sleep)

Daily Smart Features

Connectivity: BLE (BLUETOOTH Low Energy 5.0)
Compatible with Garmin Connect™ Mobile: Yes
Smartphone Compatibility: iPhone®, Android™

Activity tracking features

TrueUp™: Yes

Security Information

Security updates until at least (YYYY-MM-DD): 2027-06-18

In The Box:

Index Sleep Monitor
Charging/data cable
Documentation

Occasionally, without notice, manufacturers change product design and/or specifications.

We Won't Be Beaten

Garmin Index Sleep Monitor

Garmin Index Sleep Monitor