Garmin Index Sleep Monitor

Introduction

WARNING: Consult the Important Product and Safety Information guide included in the product packaging for warnings and other important product information.

Getting Started

When you first use the Index Sleep Monitor, you will need to complete the following steps to set it up and familiarize yourself with basic functions:

• Connect the sleep monitor to the charger to activate it (Activating the Sleep Monitor, page 2).
• Download the Garmin Connect™ app to your phone and pair the devices (Pairing Your Device with the Garmin Connect App, page 5).
• 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 modify and improve features, privacy, and security.
• Wear the sleep monitor while sleeping (Activating the Sleep Monitor, page 2).

Device Overview

The Index Sleep Monitor consists of the following parts:

• 1. Sleep Band: The strap that goes around your arm.
• 2. Module: The main unit containing the sensors and electronics.
• 3. Sensor: The part that contacts your skin to measure vital signs.
• 4. Charging Port: Where you connect the charger.
• 5. Indicator LED: Provides status information.
• 6. Module Pocket Opening: Where the module is inserted into the band.

Activating the Sleep Monitor

1. Remove the protective film from the sensor on the back of the module.
2. Connect the cable (end with ▲) to the charging port.
3. Connect the other end of the cable to a USB charging port. The LED indicator will blink purple in active pairing mode. (Pairing Your Device with the Garmin Connect App, page 5).

Wearing the Index Sleep Monitor

While you sleep, the sleep monitor automatically tracks your movements and sleep habits. You can view your sleep statistics on your Garmin Connect account (Sleep Tracking, page 9).

1. Unfold the sleep band.
2. Form a loop with the band by passing it through the retaining bar 1.
3. Place your arm through the loop and slide the device onto the upper part of your arm. The sleep band should be above your elbow.
4. Bend your arm and secure the end of the band ② onto a hook-and-loop fastener section.
5. If necessary, remove the sleep monitor from your arm and adjust it for a comfortable fit (Tips for Wearing the Sleep Monitor, page 4). TIP: Once you have adjusted the sleep monitor for a proper 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 so it is on the outside or back of your arm.

Tips for Wearing the Sleep Monitor

ATTENTION: Some users may experience skin irritation after wearing the sleep monitor for extended periods, especially those with sensitive skin or allergies. If your skin becomes irritated, remove the sleep monitor and allow your skin time to heal. To prevent skin irritation, ensure your sleep monitor is clean and dry. Avoid overtightening it around your arm.

The Index Sleep Monitor band should be snug but comfortable on your arm.

REMARK: It may be easier to adjust the sleep monitor before putting it on.

• For larger arms, attach the hook-and-loop fastener closer to the retaining bar.
• After properly adjusting the sleep monitor, keep the fastener closed so you can put it on and take it off without additional adjustment.
• Verify that your sleep monitor is properly fitted to minimize discomfort during sleep.
• REMARK: Finding a comfortable fit for the band may take some time.
• Ensure the module pocket lies flat and without creases against your skin.
• Do not overtighten the sleep monitor on your arm.

Position the module pocket and retaining bar on the outside or back of your arm. TIP: You can adjust the module closer to the inside of your arm if it is more comfortable. Avoid tight clothing that could compress the sleep monitor. Wash the sleep monitor before wearing it for the first time (Machine Washing, page 13).

Module LED Status Indicator

Pairing and Setup

Pairing Your Device with the Garmin Connect App

To use the connected features of the Index Sleep Monitor, it must be paired with the Garmin Connect app.

1. Bring your smartphone to within 10 m (33 ft.) of your device.
2. From your smartphone's app store, install and open the Garmin Connect app.
3. Connect the module to a power source using the USB cable (Activating the Sleep Monitor, page 2). The device LED indicator flashes purple in active pairing mode. The device stays in pairing mode for 5 minutes.
4. If you are performing a new pairing, press the module 10 times in 2 seconds to enter pairing mode (optional).
5. Scan the QR code with your phone.
6. Follow the on-screen instructions in the Garmin Connect app to complete the pairing procedure.

Setting an Alarm

Before you can set an alarm, your Index Sleep Monitor device must be activated and connected to the Garmin Connect app.

1. In the Garmin Connect app, select ••• > Garmin Devices.
2. Select your Index Sleep Monitor device.
3. Select Alarms > Add Alarm.
4. Select Time to set the alarm time.
5. Select Repeat to set or customize the alarm recurrence.
6. To set an alarm that gently wakes you within a 30-minute window before your wake-up time, based on your sleep cycles, enable Smart Wake Alarm. REMARK: Your alarm will always trigger at the selected time in addition to any previous alarms. For example, if you set your alarm for 8:00 AM, the alarm will begin waking you gently between 7:30 AM and 8:00 AM.
7. Select Save.
8. To set and save additional alarms, select Add Alarm and repeat steps 4 through 7.

Modifying an Alarm

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

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

• When the module vibrates, select an option: Press the module twice to snooze the alarm. Press the module four times to stop the alarm.
• You can set the vibration level in the Garmin Connect app (Setting Vibration Level, page 7).

System Settings

Setting Your Sleep Schedule

Your device uses your sleep schedule as a guide to measure your sleep accurately. Use the Garmin Connect app to set your typical sleep hours.

1. In the Garmin Connect app, select ••• > Garmin Devices.
2. Select your Index Sleep Monitor device.
3. Select System > Sleep Schedule.
4. Select the days of the week you want to set.
5. Select Bedtime and Wake Time, then enter the specific times.

Setting Vibration Level

1. In the Garmin Connect app, select ••• > Garmin Devices.
2. Select your Index Sleep Monitor device.
3. Select System > Vibration Alarm.
4. Select the vibration level. REMARK: The higher the vibration level, the faster the battery drains.

Reactivating the Module

Place your finger on the sensor on the back of the module for 5 seconds. The LED indicator will blink gray when the device powers on.

Viewing Your Sleep Data

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

1. When you wake up and are finished sleeping, remove the sleep monitor from your arm.
2. Bring the sleep monitor close to your paired smartphone.
3. Open the Garmin Connect app. REMARK: You must leave the app open or running in the background.
4. Wait a few minutes for the sleep band to sync sleep data with the Garmin Connect app. Sleep data also syncs with a compatible Garmin watch paired with Garmin Connect.
5. View your sleep data in the Garmin Connect app or on your primary Garmin portable device.

The image displays sleep data including Sleep Score, Sleep Coach, Awake, Light, Deep sleep stages, Breathing Variations, Awake/Restlessness, and Sleep Metrics like Resting Heart Rate, Avg SpO2, Avg Respiration, and Body Battery Change.

Manually Syncing Data with the Garmin Connect App

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

1. Bring the device close to your paired smartphone.
2. Open the Garmin Connect app. TIP: You can leave the app open or running in the background.
3. Select ••• > Garmin Devices.
4. Select your Index Sleep Monitor device.
5. Select ?.
6. Wait for the data synchronization to complete.
7. View your sleep data in the Garmin Connect app.

Sleep Tracking

While you sleep, the Index Sleep Monitor automatically records data about your sleep and tracks your movements during your usual sleep hours. You can set your sleep schedule in the Garmin Connect app. Sleep statistics include total sleep hours, sleep stages, sleep movements, resting heart rate, Body Battery™ changes, etc. Your sleep coach helps you determine your sleep needs based on your sleep and activity history and HRV status. You can view detailed sleep statistics and set your sleep schedule on your Garmin Connect account (Setting Your Sleep Schedule, page 7). For more information, visit www.garmin.com/garmin-technology/health-science/sleep-tracking/.

Body Battery

Your sleep monitor analyzes your heart rate variability, sleep quality, and sleep stages to determine your Body Battery change overnight. Expect the greatest Body Battery change after a good night's sleep. Activity and stress drain your energy throughout the day, while naps and rest can calm the game or even give you a boost.

REMARK: Illness, alcohol consumption, and stress may prevent you from fully recharging your Body Battery overnight.

Sync your sleep monitor with your Garmin Connect account to view your latest Body Battery changes, long-term trends, and additional details.

Pulse Oximeter

The Index Sleep Monitor is equipped with a pulse oximeter function that measures the oxygen saturation in your blood. Your blood oxygen level can help you better understand your overall health and whether your body is adapting well to altitude. Your sleep monitor assesses your blood oxygen level by emitting light through your skin and measuring the light absorbed. This measurement is called SpO2.

In your Garmin Connect app, pulse oximeter readings appear as a percentage of SpO2. Here, you can view additional details about your pulse oximeter readings, including multi-day trends, as well as any variations in your blood oxygen saturation (Respiration Variations, page 11). To learn more about pulse oximeter accuracy, visit garmin.com/ataccuracy.

Tips for Troubleshooting Pulse Oximeter Data

If your pulse oximeter data is unreliable or not displaying, you can use these tips:

• Clean and dry your arm before installing the sleep monitor.
• Wear the sleep monitor at heart level.
• Avoid applying sunscreen, lotions, or insect repellents under the sleep monitor.
• Be careful not to scratch the optical sensor on the back of the module.

Heart Rate Variability Status

Your Index Sleep Monitor analyzes your heart rate readings during sleep to determine your heart rate variability (HRV), which is the variation in time between heartbeats. Training, physical activity, sleep, diet, and healthy habits all impact your heart rate variability. HRV values can vary considerably based on sex, age, and fitness level. A balanced HRV status may indicate positive signs of health such as good training-rest balance, better cardiovascular fitness, and stress resilience. An unbalanced or poor status may be a sign of fatigue, increased recovery needs, or increased stress. For best results, wear the sleep monitor consistently while sleeping. The sleep monitor requires three weeks of consistent sleep data to display your heart rate variability status. Sync your sleep monitor with your Garmin Connect account to view your current heart rate variability status and associated trends.

Skin Temperature

The module on the Index Sleep Monitor is equipped with a sensor designed to track variations in your skin temperature overnight. Your skin temperature changes over time, which can be related to your recent activity and sleep environment. Skin temperature can also be an indicator of changes in your overall body temperature, which may indicate illness. Observing trends can provide insights for improving your sleep and health.

TIP: For women, you can also use skin temperature variations to better track your menstrual cycle or ovulation. For more information, visit www.garmin.com/garmin-technology/health-science/womens-health/.

You must wear your sleep monitor for three nights to set your reference skin temperature.

Respiration Variations

ATTENTION: The Index Sleep Monitor is not a medical device and is not intended to diagnose or monitor the progression of a disease of any kind. For more information on pulse oximeter accuracy, visit garmin.com/ataccuracy.

The heart rate optical sensor on the Index Sleep Monitor has a pulse oximeter function that can measure respiration variations during the night. You receive information on respiration variations to make you aware of your sleep environment and overall well-being. Occasional or frequent variations may be due to factors related to your lifestyle or sleep environment. If you have concerns about your respiration variations, talk to your doctor or health care provider.

In your Garmin Connect account, you can view more details about respiration variations, including multi-day trends.

Device Information

Charging the Device

WARNING: This device contains a lithium-ion battery. Consult the Important Product and Safety Information guide included in the product packaging for warnings and other important product information.

NOTICE: To prevent corrosion, clean and dry the contacts and surrounding area thoroughly before charging the device.

REMARK: The device will not charge when its temperature is outside the approved temperature range (Specifications, page 14).

Your device includes a proprietary charging cable. For optional accessories and replacement parts, visit buy.garmin.com or contact your Garmin dealer.

1. Locate the back of the module.
2. Connect the cable (end with ▲) to the charging port.
3. Connect the other end of the cable to a USB charging port.
4. Fully charge the device. The LED indicator flashes green while charging. The LED indicator stays solid green when the device is fully charged. A full charge may take 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 activity files or data to your computer.

1. In the Garmin Connect app, select ••• > Garmin Devices.
2. Select your Index Sleep Monitor device.
3. Select System > Access Files via USB.
4. Enable Access Files via USB.
5. Connect the cable (end with ▲) to the device charging port.
6. Connect the other end of the cable to a computer USB port.

Depending on your computer's operating system, the device appears as a portable device, removable drive, or removable volume. REMARK: Mac® operating systems do not detect the device by default. You must use Garmin Express™ software to interact with your device files.

Updating the Software Using the Garmin Connect App

To update the device software using the Garmin Connect app, you must have a Garmin Connect account and pair the device with a compatible smartphone (Pairing Your Device with the Garmin Connect App, page 5). Sync your device with the Garmin Connect app (Manually Syncing Data with the Garmin Connect App, page 8). When a new software version is available, the Garmin Connect app sends it to your device automatically.

Device Care

NOTICE: Avoid shocks and rough handling that could damage the device. Avoid using chemical cleaners, solvents, or insect repellents that could damage plastic parts and finishes. Do not store the device in a location where it is exposed to extreme temperatures for prolonged periods, as this could cause irreparable damage. Do not machine wash the module. The module should resist occasional rain or water splashes. Placing the module in a washing machine or dryer could damage it (Machine Washing, page 13). Do not use a sharp or abrasive object to clean the module. Be careful not to scratch the sensor on the back of the module.

Removing and Inserting the Module in the Sleep Band

You must remove the module from the Index Sleep Monitor to wash the sleep band (Machine Washing, page 13).

1. Release the hook-and-loop fastener to open the module pocket 1 on the sleep band.
2. Slide the module out of the pocket 2.
3. To insert the module, slide it into the open pocket with the Garmin logo facing up. TIP: When the module is in the sleep band, the sensor and charging port should be clear of any fabric.

Machine Washing

Before washing the sleep band in a washing machine, you must remove the module from the pocket (Removing and Inserting the Module in the Sleep Band, page 13).

• Secure hook-and-loop fasteners on the sleep band before washing.
• Machine wash the sleep band alone or with your regular laundry.
• Place the sleep band in a laundry bag or pillowcase to prevent the strap from tangling.
• Use a small amount of non-abrasive detergent. REMARK: Do not use bleach or detergents containing harsh chemicals, fabric softener, bleach, or abrasive substances.
• Run the washing machine on a delicate cycle with warm water, with a maximum temperature of 40 °C (104 °F).
• To air dry the sleep band, 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 reset the Index Sleep Monitor to its default settings. REMARK: Resetting the device deletes long-term data such as skin temperature and heart rate variability (HRV).

1. In the Garmin Connect app, select ••• > Garmin Devices.
2. Select your Index Sleep Monitor device.
3. Select System > Factory Reset. The LED indicator flashes orange continuously until the reset is complete. REMARK: Resetting the device may take up to 10 minutes.
4. Re-pair (Pairing Your Device with the Garmin Connect App, page 5).

How to Check the Battery Level?

There are two different ways to check the battery charge level:

• In the Garmin Connect app, select ••• > Garmin Devices, then select the Index Sleep Monitor.
• Remove the Index Sleep Monitor from your arm and quickly check the indicator. The device indicator flashes red when the battery charge is very low.

My Sleep Monitor Is Not Syncing with the App

• Verify that you have completed the setup process (Activating the Sleep Monitor, page 2).
• Remove the sleep monitor from your arm immediately after waking so it syncs with the Garmin Connect app right away.
• Place the sleep monitor within range of your smartphone.
• Place your finger on the sensor on the back of the module for 5 seconds to reactivate it.
• If your devices are already paired, disable Bluetooth® on your smartphone, then re-enable it.
• If your devices are already paired, ensure the Garmin Connect app is enabled or running in the background.
• If your devices are already paired, remove the Index Sleep Monitor from your smartphone's Bluetooth settings, then re-pair the devices (Pairing Your Device with the Garmin Connect App, page 5).
• If your devices are not paired, enable Bluetooth on your smartphone.
• On your phone, open the Garmin Connect app, select ••• > Garmin Devices, select the Index Sleep Monitor, then select ? to perform a manual sync.

Additional Information

• Visit support.garmin.com for additional manuals, articles, and software updates.
• Visit buy.garmin.com or contact your Garmin dealer for information on compatible devices and replacement parts.
• Visit www.garmin.com/ataccuracy.

This device is not a medical device. The pulse oximeter is not available in all countries.