Garmin Index Sleep Monitor

Introduction

This guide provides essential information for setting up and using your Garmin Index Sleep Monitor. For safety and regulatory information, refer to the included "Important Safety and Product Information" guide.

Getting Started

To set up your Index Sleep Monitor and learn its basic functions, follow these steps:

1. Connect the sleep strap to the charger to power it on (see "Activating the Sleep Strap", page 2).
2. Download the Garmin Connect app to your smartphone and pair the devices (see "Pairing Your Device with the Garmin Connect App", page 6).
3. Charge the sleep strap (see "Charging the Device", page 11).
4. Check for software updates (see "Updating the Software Using the Garmin Connect App", page 12). Software updates provide feature enhancements and improvements to privacy, functionality, and performance.
5. Wear the sleep strap before sleeping (see "Activating the Sleep Strap", page 2).

Device Overview

The Index Sleep Monitor consists of the following components:

• 1. Sleep Strap: The wearable band for the device.
• 2. Module: The main unit containing the sensors and battery.
• 3. Sensors: Detect physiological data during sleep.
• 4. Charging Port: Where the charging cable connects.
• 5. LED Indicator: Provides status information about the module.
• 6. Module Cavity: The slot on the sleep strap where the module is inserted.

Activating the Sleep Strap

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

Wearing the Index Sleep Monitor

While you sleep, the sleep strap tracks your movements and sleep patterns. You can view your sleep statistics in your Garmin Connect account (see "Tracking Sleep", page 9).

1. Unfold the sleep strap.
2. Create a loop by threading the strap through the retaining ring.
3. Insert your arm through the loop and position the sleep strap on your upper arm, above the elbow.
4. Fold your arm and secure the strap end to the fabric fastener.
5. If necessary, remove the sleep strap from your wrist and adjust the strap for a comfortable fit (see "Tips for Wearing the Sleep Strap", page 4). It is recommended that once the strap is adjusted for a proper fit, you should be able to put on and take off the strap without readjusting it each time.
6. Position the module on the outside or back of your arm.

Tips for Wearing the Sleep Strap

CAUTION: Some users may experience skin irritation after prolonged use of the sleep strap, especially if they have sensitive skin or allergies. If skin irritation occurs, remove the sleep strap and allow your skin to heal. To prevent skin irritation, keep the sleep strap clean and dry, and do not overtighten the strap on your wrist.

• The Index Sleep Monitor sleep strap should fit snugly but comfortably.
• It may be easier to adjust the sleep strap before putting it on.
• If you have a larger arm, secure the fastener closer to the retaining ring.
• After adjusting the sleep strap for a proper fit, keep the loop so you can put on and take off the sleep strap during use without further adjustment.
• Check the fit of the sleep strap to minimize discomfort during sleep.
• Ensure the module's fabric cover always lies flat against your skin, without wrinkles.
• Do not overtighten the sleep strap on your wrist.
• Position the module's fabric cover and retaining ring on the outside or back of your arm. It may be more comfortable to position the module slightly towards the inside of your arm.
• Do not wear clothing that could constrict the sleep strap.
• Before wearing the sleep strap for the first time, wash it (see "Machine Washing the Sleep Strap", page 13).

Module Status LED

The LED indicator on the module provides status information:

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. Place the phone within 10 m (33 ft.) of the device.
2. Install and open the Garmin Connect app from your phone's app store.
3. Connect the module to a power source using the USB cable (see "Activating the Sleep Strap", page 2). While the LED is flashing, the device is in pairing mode for 5 minutes.
4. If you are re-pairing the device, tap the module 10 times within 2 seconds to open pairing mode (optional).
5. Scan the QR code with your phone.
6. Follow the instructions in the Garmin Connect app to complete the pairing process.

Setting an Alarm

Before setting an alarm, the Index Sleep Monitor must be active and paired with the Garmin Connect app.

1. In the Garmin Connect app, select Menu > Garmin Devices.
2. Select your Index Sleep Monitor.
3. Select Alarm > Add Alarm.
4. Select Time to set the alarm time.
5. Select Repeat to set or customize the alarm repetition.
6. To set an alarm that wakes you gently within a 30-minute window before your scheduled alarm, enable Smart Alarm. The alarm will always sound at your selected time, in addition to any previous alarms. For example, if you set an alarm for 8:00 AM, the alarm may wake you 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.

Editing an Alarm

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

Snoozing or Stopping an Alarm

You can use the Garmin Connect app to set your alarm (see "Setting an Alarm", page 6). While the module is vibrating, select an option:

• To snooze the alarm, double-tap the module.
• To stop the alarm, tap the module four times.

You can set the vibration level in the Garmin Connect app (see "Setting the Vibration Level", page 7).

System Settings

Setting Your Sleep Schedule

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

1. In the Garmin Connect app, select Menu > Garmin Devices.
2. Select your Index Sleep Monitor.
3. Select System > Sleep Schedule.
4. Select the day range you want to set.
5. Select Bedtime and Wake Time and enter the specific times.

Setting the Vibration Level

1. In the Garmin Connect app, select Menu > Garmin Devices.
2. Select your Index Sleep Monitor.
3. Select System > Vibration Alert.
4. Select the vibration level. Higher vibration levels will shorten battery life.

Activating the Module

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

Viewing Sleep Data

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

1. When you wake up and are done sleeping, remove the sleep strap from your wrist.
2. Place the sleep strap near your paired phone.
3. Open the Garmin Connect app. The app must be open or running in the background.
4. Wait a few minutes for the sleep strap to sync sleep data with the Garmin Connect app. Sleep data is also synced to a compatible Garmin watch that is paired with Garmin Connect.
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 automatically syncs data with the Garmin Connect app periodically when the device is active and connected to the app. You can also sync data manually at any time.

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

Tracking Sleep

While you sleep, the Index Sleep Monitor sleep strap automatically detects your sleep and tracks your movements during your typical sleep times. You can set your normal sleep schedule in the Garmin Connect app. Sleep statistics include total sleep hours, sleep stages, sleep movements, resting heart rate, Body Battery™ changes, and more. The sleep coach provides personalized sleep recommendations based on your sleep history and HRV status. You can view detailed sleep statistics and set your sleep schedule in your Garmin Connect account (see "Setting Your Sleep Schedule", page 7). For more information, visit www.garmin.com/garmin-technology/health-science/sleep-tracking/.

Body Battery

The sleep strap analyzes heart rate variability, sleep quality, and sleep stages to determine your Body Battery level overnight. Significant changes in Body Battery are expected after a good night's sleep. Activity and stress generally deplete your energy levels throughout the day, but periods of rest and calm moments can help prevent energy depletion or provide a small energy boost. Illness, alcohol consumption, and stress may prevent your Body Battery from fully recovering overnight. Sync your sleep strap with your Garmin Connect account to view your latest Body Battery changes, long-term trends, and additional information.

Pulse Oximeter

The Index Sleep Monitor sleep strap has a pulse oximeter function to measure your blood oxygen saturation levels. Knowing your blood oxygen saturation level can help you understand your overall health and how your body adapts to altitude. The sleep strap measures your blood oxygen saturation level by shining light into your skin and checking how much light is absorbed. This is displayed as your SpO2 percentage. In the Garmin Connect app, pulse oximeter readings appear as a SpO2 percentage. Here, you can view additional information about your pulse oximeter readings, including multi-day trends and variations in your blood oxygen saturation percentage (see "Respiration Variations", page 10). For more information on pulse oximeter accuracy, visit garmin.com/ataccuracy.

Tips for Unusual Pulse Oximeter Data

• Before putting on the sleep strap, clean and dry your wrist.
• Wear the sleep strap at heart level.
• Do not apply sunscreen, lotion, or insect repellent under the sleep strap.
• Do not scratch the optical sensor on the back of the module.

Heart Rate Variability Status

Your Index Sleep Monitor sleep strap analyzes your heart rate readings while you 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 affect your heart rate variability. HRV values can vary significantly based on gender, age, and fitness level. A balanced HRV status can indicate positive health markers, such as good training and recovery balance, better cardiovascular fitness, and stress resilience. An unbalanced or poor status may indicate fatigue, a greater need for recovery, or increased stress. For best results, wear the sleep strap consistently during sleep. For the sleep strap to display your heart rate variability status, it requires three weeks of consistent sleep data.

Sync your sleep strap with your Garmin Connect account to view your current heart rate variability status and trends.

Skin Temperature

The Index Sleep Monitor sleep strap has a sensor designed to track variations in your skin temperature during the night. Skin temperature changes over time and can be related to recent activity and your sleep environment. Skin temperature may also indicate changes in your overall body temperature, potentially providing an early warning of illness. Track trends to help improve your sleep and health. Women's skin temperature variations can also be used to better track menstrual or ovulation cycles. For more information, visit www.garmin.com/garmin-technology/health-science/womens-health/. The sleep strap must be worn for three nights to establish a baseline for skin temperature.

Respiration Variations

CAUTION: The Index Sleep Monitor is not a medical device and is not intended to diagnose or monitor any medical condition. For more information on pulse oximeter accuracy, visit garmin.com/ataccuracy.

The Index Sleep Monitor's optical heart rate sensor has a pulse oximeter function that allows you to measure your respiration variations at night. Respiration variation data is provided to help you understand your sleep environment and overall well-being. Infrequent or frequent respiration variations may be due to individual lifestyle factors or your sleep environment. Consult your physician or healthcare provider if you have concerns about your respiration variation levels. You can view additional information about respiration variations, including multi-day trends, in your Garmin Connect account.

Device Information

Charging the Device

CAUTION: This device contains a lithium-ion battery. Refer to the "Important Safety and Product Information" guide included with your device for warnings and other important information applicable to the device.

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

The device will not charge if it is outside the approved temperature range (see "Specifications", page 14).

A proprietary charging cable is included with the device. For optional accessories and replacement parts, visit buy.garmin.com or contact your Garmin retailer.

1. Locate the back of the module.
2. Connect the cable to the charging port.
3. Connect the other end of the cable to a USB power port.
4. Charge the device completely. The LED blinks while charging and is solid when charging is complete. Full device charging takes up to 2 hours.

Connecting the Device to a Computer

You can connect the Index Sleep Monitor to a computer to install software updates or transfer activity files or data to your computer.

1. In the Garmin Connect app, select Menu > Garmin Devices.
2. Select your Index Sleep Monitor.
3. Select System > USB Mass Storage.
4. Enable USB Mass Storage.
5. Connect the cable to the device's charging port.
6. Plug the other end of the cable into a USB port on your computer. Depending on your computer's operating system, the device appears as a portable device, removable drive, or removable volume.

NOTE: Mac operating systems do not find the device by default. To interact with files on the device, you must use the Garmin Express™ software.

Updating the Software Using the Garmin Connect App

To update the device software, you must have a Garmin Connect account and the device must be paired with a compatible smartphone (see "Pairing Your Device with the Garmin Connect App", page 6).

Sync your device with the Garmin Connect app (see "Manually Syncing Data with the Garmin Connect App", page 9).

When a new software version is available, the app automatically sends it to your device.

Device Care

NOTICE: Avoid shocks and rough handling, which can shorten the product's lifespan. Avoid using cleaning agents, solvents, and insect repellents, which can damage plastic components and finishes. Do not store the device where it can be exposed to extreme temperatures, as this can cause irreversible damage. Do not machine wash the module. The module should withstand occasional exposure to water splashes. Machine washing or tumble drying the module can cause damage (see "Machine Washing the Sleep Strap", page 13). Do not use sharp or abrasive objects to clean the module. Do not scratch the sensor on the back of the module.

Removing and Inserting the Module from the Sleep Strap

To wash the sleep strap, you must remove the module from the Index Sleep Monitor (see "Machine Washing the Sleep Strap", page 13).

1. Release the hook-and-loop fasteners to open the module cavity on the sleep strap.
2. Remove the module from the cavity.
3. To insert the module, slide it into the open cavity with the Garmin logo facing up. Ensure the fabric does not obstruct the sensor or charging port while the module is in the sleep strap.

Machine Washing the Sleep Strap

• Before machine washing the sleep strap, remove the module from the cavity (see "Removing and Inserting the Module from the Sleep Strap", page 13).
• Secure the hook-and-loop fasteners before washing.
• Wash the sleep strap with your regular laundry or separately.
• Place the sleep strap in a mesh laundry bag or lingerie bag to prevent tangling.
• Use a small amount of mild detergent. Do not use bleach, detergents containing harsh chemicals, fabric softener, bleach, or abrasive materials.
• Run the washing machine on a gentle cycle with warm water, not exceeding 40°C (104°F).
• To dry the sleep strap, 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 factory default settings.

NOTE: Resetting the device deletes long-term data such as skin temperature and heart rate variability (HRV).

1. In the Garmin Connect app, select Menu > Garmin Devices.
2. Select your Index Sleep Monitor.
3. Select System > Reset to Factory Defaults. The LED will remain solid until the reset is complete. Resetting the device takes up to 10 minutes.
4. Re-pair the device (see "Pairing Your Device with the Garmin Connect App", page 6).

How to Check the Battery Charge Level

You can check the battery charge level in two ways:

• In the Garmin Connect app, select Menu > Garmin Devices, and select your Index Sleep Monitor.
• Remove the Index Sleep Monitor from your wrist and quickly check the LED. The device status flashes red when the battery charge level is critically low.

Sleep Strap Not Syncing with the App

• Ensure you completed the setup process (see "Activating the Sleep Strap", page 2).
• Remove the sleep strap from your wrist immediately after waking up so the sleep strap syncs with the app right away.
• Place the sleep strap near your smartphone.
• Tap the sensor module on the back for 5 seconds to activate it.
• If the devices are already paired, turn off Bluetooth on your phone and then 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 (see "Pairing Your Device with the Garmin Connect App", page 6).
• If the devices are not paired, enable Bluetooth technology on your phone.
• Open the Garmin Connect app on your phone, select Menu > Garmin Devices, select your Index Sleep Monitor, and select Sync to sync manually.

Getting More Information

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

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