Garmin Index Sleep Monitor

Introduction

Read the safety and product information guide for important warnings and other information. This guide is included in the product packaging.

Getting Started

When you use the Index Sleep Monitor for the first time, set it up by following these steps and familiarize yourself with its basic features.

• Connect the sleep monitor to the charger to turn it on (Activating the Sleep Monitor, page 2).
• Download and open the Garmin Connect™ app on your phone, and pair the devices (Pairing the Device with the Garmin Connect App, page 6).
• Charge the sleep monitor (Charging the Device, page 11).
• Check for software updates (Updating the Software Using the Garmin Connect App, page 12). Software updates can include changes and improvements to privacy, security, and features.
• Activate the sleep monitor before going to bed (Activating the Sleep Monitor, page 2).

Device Overview

The sleep monitor consists of the following parts:

• 1. Sleep Monitor: The wristband.
• 2. Module: The sensor unit.
• 3. Sensor: The sensor on the back of the module.
• 4. Charging Port: The port for charging the module.
• 5. Status LED: Indicates the status of the module.
• 6. Opening the Module Slot: The slot where the module is inserted into the wristband.

Activating the Sleep Monitor

1. Remove the protective film from the sensor on the back of the module.
2. Connect the USB cable to the charging port on the module.
3. Connect the other end of the cable to a USB power source. The status LED will blink in pairing mode. The device is in pairing mode for 5 minutes (Pairing the Device with the Garmin Connect App, page 6).

Attaching the Index Sleep Monitor Wristband

The wristband monitors your movement and sleep patterns while you sleep. You can view your sleep statistics on your Garmin Connect account (Sleep Tracking, page 9).

1. Open the sleep monitor wristband.
2. Create a loop by threading the sleep monitor through the attachment bar (1).
3. Place your arm through the loop and slide the sleep monitor onto your upper arm. The sleep monitor should be above your elbow.
4. Bend your arm and attach the end of the wristband (2) to the hook-and-loop fastener.
5. If necessary, remove the sleep monitor from your arm and adjust it so it feels comfortable (Sleep Monitor Usage Tips, page 4). TIP: Once you have adjusted the sleep monitor for a comfortable fit on your arm, you should be able to put it on and take it off without readjusting it each time.
6. Position the module on the outside or back of your arm.

Sleep Monitor Usage Tips

CAUTION: Some users may experience skin irritation from wearing the sleep monitor for extended periods, especially if you have sensitive skin or allergies. If you notice skin irritation, remove the sleep monitor and allow your skin to heal. You can prevent skin irritation by ensuring the sleep monitor is clean and dry, and by not wearing it too tight.

• The Index Sleep Monitor must be snug but comfortable on your arm.
• NOTE: It may be easier to adjust the wristband before putting it on.
• Attach the hook-and-loop fastener to the thicker part of your arm closer to the attachment bar.
• Once you have adjusted the sleep monitor for a comfortable fit, hold the loop in place so you can slide the sleep monitor on and off during use without further adjustment.
• Ensure the sleep monitor feels comfortable while you sleep. NOTE: It may take some time to find a comfortable position.
• Ensure the module slot is snug against your skin without any folds.
• Do not overtighten the sleep monitor on your arm.
• Position the module slot and attachment bar on the outside or back of your arm. TIP: You can move the module to the inside of your arm if it is more comfortable.

Module Status LED

Pairing and Setup

Pairing the Device with the Garmin Connect App

To use the connectivity features of the Index Sleep Monitor, you must pair it with the Garmin Connect app.

1. Bring your phone within 10 meters (33 feet) of the device.
2. Download and open the Garmin Connect app from your phone's app store.
3. Connect the module to a power source using the USB cable (Activating the Sleep Monitor, page 2). The status LED on the device will blink in pairing mode. The device is in pairing mode for 5 minutes.
4. If you are re-pairing the device, put the module in pairing mode by tapping it 10 times in 2 seconds (optional).
5. Scan the QR code with your phone.
6. Complete the pairing process by following the on-screen instructions in the Garmin Connect app.

Setting an Alarm

To set an alarm, the Index Sleep Monitor must be awake and connected to the Garmin Connect app.

1. In the Garmin Connect app, select ••• > Garmin Devices.
2. Select Index Sleep Monitor.
3. Select Alarms > Add Alarm.
4. Select the Time and set the alarm time.
5. You can set the alarm to repeat or customize it by selecting Repeat.
6. Enabling Smart Alarm allows you to set the alarm to gently wake you within a 30-minute window before the scheduled alarm time, based on your optimal sleep time. NOTE: The alarm will always sound at your selected time in addition to any earlier alarms. For example, if your alarm time is 8:00 AM, the alarm may gently wake you between 7:30 AM and 8:00 AM.
7. Select Save.
8. You can set and save additional alarms by selecting Add Alarm and repeating steps 4–7.

Modifying an Alarm

1. In the Garmin Connect app, select ••• > Garmin Devices.
2. Select Index Sleep Monitor.
3. Select Alarms > Edit.
4. Select an alarm.
5. Select an option.
6. Select Save.

Snoozing or Stopping an Alarm

You can set an alarm in the Garmin Connect app (Setting an Alarm, page 6).

• When the module vibrates, select an option:
• Tap the module twice quickly to snooze the alarm.
• Tap the module four times quickly to stop the alarm.

The vibration level can be set in the Garmin Connect app (Setting Vibration Level, page 7).

System Settings

Setting a Sleep Schedule

The device accurately measures your sleep using your sleep schedule. Set your typical sleep and wake times in the Garmin Connect app.

1. In the Garmin Connect app, select ••• > Garmin Devices.
2. Select Index Sleep Monitor.
3. Select System > Sleep Schedule.
4. Select the days.
5. Select the Start Time and Wake Time and set the times.

Setting Vibration Level

1. In the Garmin Connect app, select ••• > Garmin Devices.
2. Select Index Sleep Monitor.
3. Select System > Vibration Alert.
4. Select the vibration level. NOTE: The battery life is shorter with higher vibration levels.

Waking the Module

Press and hold the sensor on the back of the module for 5 seconds.

The status LED will blink when the device starts.

Viewing Sleep Data

To view your sleep data in the Garmin Connect app, both the Index Sleep Monitor device and the Garmin Connect app must be active and connected.

1. When you wake up, remove the sleep monitor from your arm.
2. Bring the sleep monitor close to your paired phone.
3. Open the Garmin Connect app. NOTE: The app must be open or running in the background.
4. Wait a few minutes for the sleep monitor to sync sleep data to the Garmin Connect app. Sleep data also syncs to a compatible Garmin watch that is paired with the Garmin Connect service.
5. View your sleep data in the Garmin Connect app or on your primary wearable device.

Manually Syncing Data with the Garmin Connect App

The Index Sleep Monitor device syncs data with the Garmin Connect app periodically when the device is awake and connected to the Garmin Connect app. You can also sync data manually at any time.

1. Bring the device close to your paired phone.
2. Open the Garmin Connect app. TIP: The app can be open or running in the background.
3. Select ••• > Garmin Devices.
4. Select Index Sleep Monitor.
5. Select Sync.
6. Wait for the data to sync.
7. View your sleep data in the Garmin Connect app.

Sleep Tracking

The Index Sleep Monitor wristband automatically monitors your sleep and tracks your movements while you sleep during your specified sleep window. You can set your sleep times in the Garmin Connect app. Sleep statistics include total sleep time, sleep stages, movements during sleep, resting heart rate, and Body Battery™ changes. The Sleep Coach provides recommendations for sleep and performance based on your sleep and activity history and heart rate variability status. You can view your detailed sleep statistics and set your sleep schedule in your Garmin Connect account (Setting a Sleep Schedule, page 7).

For more information, visit www.garmin.com/garmin-technology/health-science/sleep-tracking/.

Body Battery

The wristband determines your Body Battery level overnight by analyzing your heart rate variability, sleep quality, and sleep stages. The Body Battery level is typically highest when you sleep well. Activity and stress consume energy during the day, and naps and rest can slow energy consumption or even increase energy. NOTE: Illness, alcohol, and stress can prevent your Body Battery from fully charging overnight. By syncing your wristband with your Garmin Connect account, you can view your current Body Battery level, long-term trends, and more.

Pulse Oximeter

The Pulse Oximeter on the Index Sleep Monitor wristband measures your blood oxygen saturation. Blood oxygen saturation data may help you assess your overall fitness and how well your body is adapting to altitude. The wristband determines your blood oxygen level by illuminating your skin and measuring how much light is absorbed. This is referred to as SpO2. Your Pulse Oximeter readings appear as an SpO2 percentage in the Garmin Connect app. Here you can find more information about your Pulse Oximeter readings, such as trends over several days and variations in your blood oxygen saturation percentage (Breathing Variations, page 10). For information on Pulse Oximeter accuracy, visit garmin.com/ataccuracy.

Tips if Your Pulse Oximeter Data is Inaccurate

• Clean and dry your arm before putting on the wristband.
• Wear the wristband on your heart level.
• Do not wear sunscreen, lotion, or insect repellent under the wristband.
• Do not scratch the optical sensor on the back of the module.

Heart Rate Variability Status

The Index Sleep Monitor wristband analyzes your heart rate readings while you sleep and determines your heart rate variability (HRV), which is the variation in time between heartbeats. Your training, activity, sleep, nutrition, and healthy lifestyle habits all affect your HRV. HRV values can vary significantly based on your gender, age, and fitness level. A balanced HRV status may indicate good overall health, including a good balance of training and recovery, cardiovascular health, and stress resilience. An unbalanced or poor status may indicate fatigue, a need for more recovery, or high stress. For best results, wear the wristband while you sleep. You need three weeks of sleep data to display your HRV status.

By syncing your wristband with your Garmin Connect account, you can view your current HRV status and trends.

Skin Temperature

The sensor on the Index Sleep Monitor wristband monitors variations in your skin temperature while you sleep. Your skin temperature may change over time, which may be related to your recent activity and sleep environment. Skin temperature may also indicate changes in your overall body temperature and potentially signal illness. By tracking trends, you can improve your sleep and overall health. TIP: Women can also track their menstrual or ovulation cycle based on skin temperature variations. For more information, visit www.garmin.com/garmin-technology/health-science/womens-health/. Determine your baseline skin temperature by wearing the wristband while you sleep for three nights.

Breathing Variations

CAUTION: The Index Sleep Monitor is not a medical device and is not intended to diagnose or monitor medical conditions. For information on Pulse Oximeter accuracy, visit garmin.com/ataccuracy.

The optical heart rate sensor on the Index Sleep Monitor wristband has a Pulse Oximeter feature that can measure your breathing variations while you sleep. Breathing variation data can increase your awareness of your sleep environment and overall well-being. Occasional or frequent breathing variations may be related to your lifestyle or sleep environment. If you are concerned about the amount of breathing variation, talk to your doctor or other healthcare professional.

On your Garmin Connect account, you can view more details about breathing variations, such as trends over several days.

Device Information

Charging the Device

WARNING: The device contains a lithium-ion battery. Read the Important Safety and Product Information guide included with your device for more information about warnings and other important information.

NOTE: To prevent corrosion, clean and dry the contacts and the surrounding area thoroughly before charging. NOTE: The device will not charge if the temperature is outside the acceptable range (Specifications, page 14). The device comes with a charging cable. You can purchase optional accessories and replacement parts at buy.garmin.com or from your Garmin dealer.

1. Locate the back of the module.
2. Connect the USB cable to the charging port on the module.
3. Connect the other end of the cable to a USB power source. Charge the device until the battery is fully charged. The status LED blinks while charging. The status LED is solid when charging is complete. Charging the device fully takes up to 2 hours.

Connecting the Device to a Computer

You can connect the Index Sleep Monitor to your computer to install software updates or transfer performance data or other information to your computer.

1. In the Garmin Connect app, select ••• > Garmin Devices.
2. Select Index Sleep Monitor.
3. Select System > Storage Mode.
4. Enable Mass Storage.
5. Connect the USB cable to the charging port on the device.
6. Connect the other end of the cable to a USB port on your computer. Depending on your computer's operating system, the device will appear as a portable device, removable drive, or removable disk. NOTE: macOS operating systems do not recognize the device by default. You need the Garmin Express™ software to manage the device files.

Updating the Software Using the Garmin Connect App

To update the device software using the Garmin Connect app, you need a Garmin Connect account and must pair the device with a compatible phone (Pairing the Device with the Garmin Connect App, page 6). Sync your device with the Garmin Connect app (Manually Syncing Data with the Garmin Connect App, page 9). When new software is available, the Garmin Connect app will automatically send it to your device.

Device Care

NOTE: Avoid hard impacts and rough handling, as they can reduce the lifespan of the device. Avoid chemical cleaners, solvents, and insect repellents, which can damage plastic parts and surfaces. Do not store the device in extremely hot or cold temperatures, as this can permanently damage the device. Do not wash the module in a washing machine. The module should withstand occasional rain and splashes. The module can be damaged in a washing machine or dryer (Machine Washing, page 13). Do not clean the module with a sharp or abrasive object. Do not scratch the optical sensor on the back of the module.

Removing and Attaching the Sleep Monitor Module

The module must be removed from the Index Sleep Monitor wristband before washing the wristband (Machine Washing, page 13).

1. Open the sleep monitor module slot by opening the hook-and-loop fasteners (1).
2. Slide the module out of the slot (2).
3. Insert the module into the open slot by sliding it in with the Garmin logo facing up. TIP: When the module is in the wristband, the sensor and charging port should not be covered by fabric.

Machine Washing

Remove the module from the wristband slot before washing the wristband in a washing machine (Removing and Attaching the Sleep Monitor Module, page 13).

• Fasten the hook-and-loop fasteners on the wristband before washing.
• Wash the wristband in the washing machine with your regular laundry or by itself.
• Place the wristband in a mesh laundry bag or wash bag to prevent the strap from tangling.
• Use a small amount of mild detergent. NOTE: Do not use bleach or detergents containing harsh chemicals, fabric softener, bleach, or abrasives. Use a gentle wash cycle at or below 40°C (104°F). When drying the wristband, hang it or lay it flat.

Specifications

¹The device withstands pressure equivalent to a depth of 50 meters. For more information, visit www.garmin.com/waterrating.

Troubleshooting

Resetting the Device

You can restore the Index Sleep Monitor wristband to its factory default settings. NOTE: Resetting the device deletes long-term data, such as skin temperature and heart rate variability.

1. In the Garmin Connect app, select ••• > Garmin Devices.
2. Select Index Sleep Monitor.
3. Select System > Reset All Data. The status LED will blink until the reset is complete. NOTE: Resetting the device takes up to 10 minutes.
4. Re-pair the device (Pairing the Device with the Garmin Connect App, page 6).

How Do I Check Battery Level?

You can check the battery level in two ways:

• In the Garmin Connect app, select ••• > Garmin Devices and Index Sleep Monitor.
• Remove the Index Sleep Monitor from your arm and quickly check the status LED. The device status LED blinks when the battery is critically low.

Wristband Not Syncing with the App

• Ensure you have completed the setup (Activating the Sleep Monitor, page 2).
• Remove the sleep monitor from your arm immediately after waking up so it syncs with the Garmin Connect app right away.
• Bring the sleep monitor close to your phone.
• Wake the module by pressing and holding the sensor on the back for 5 seconds.
• If the devices are already paired, turn off Bluetooth on your phone and turn it back on.
• If the devices are already paired, ensure the Garmin Connect app is active or running in the background.
• If the devices are already paired, remove the Index Sleep Monitor from your phone's Bluetooth settings and re-pair the devices (Pairing the Device with the Garmin Connect App, page 6).
• If the devices are not paired, enable Bluetooth on your phone.
• Sync manually by opening the Garmin Connect app on your phone and selecting ••• > Garmin Devices, Index Sleep Monitor, and Sync.

Getting More Information

• For more guides, articles, and software updates, visit support.garmin.com.
• For information on compatible devices and replacement parts, visit buy.garmin.com or your Garmin dealer.
• Visit www.garmin.com/ataccuracy.

The device is not a medical device. Pulse oximeter functionality is not available in all countries.