Track Your Sleep – Without Wearing a Watch to Bed

Want all the benefits of Garmin sleep tracking, but don't want to sleep with a smartwatch strapped to your wrist?

The Garmin Index Sleep Monitor is a lightweight smart band designed specifically to be worn around your upper arm while you sleep.

There's no screen to distract you and no watch sitting on your wrist. You simply wear the soft band to bed and let Garmin monitor what's happening while you sleep.

In the morning, your information synchronises with the Garmin Connect app, giving you a much clearer picture of your night's sleep.

How Does It Work?

The Index Sleep Monitor contains a removable electronic sensor inside a comfortable fabric upper-arm band.

Before going to bed:

Put the band around your upper arm → go to sleep → Garmin does the rest.

During the night, its sensors collect information about your sleep and body.

When you wake up, remove the band and your data can synchronise with Garmin Connect on your compatible smartphone.

You can then see your sleep information and longer-term trends rather than simply being told how many hours you spent in bed.

What Can It Track?

The Index Sleep Monitor provides a surprisingly detailed picture of your night, including:

• Sleep duration
• Sleep stages
• Sleep score
• Heart rate
• Heart Rate Variability (HRV)
• Blood oxygen saturation (Pulse Ox / SpO₂)
• Respiration
• Skin temperature changes
• Body Battery information
• Breathing variations
• Women's health-related sleep insights when used with compatible Garmin Connect features

This information is brought together inside Garmin Connect, making it particularly useful if you already use Garmin products.

Why Not Just Wear Your Garmin Watch?

You certainly can — but not everyone enjoys sleeping with a watch on.

That's really where the Index Sleep Monitor makes sense.

Some people remove their smartwatch at night because they find it uncomfortable, while others use nighttime as the opportunity to charge their Garmin watch.

The Index Sleep Monitor lets you continue gathering overnight data while your wrist is completely free.

It's a simple idea — but a clever one.

L/XL Size

This is the Large / Extra Large version, designed for an upper-arm circumference of approximately:

26–42cm (10.5–16.6 inches).

Garmin also produces an S/M version for smaller arms.

Up to 7 Nights Battery Life

The built-in rechargeable lithium-ion battery provides up to 7 nights of battery life, including SpO₂ monitoring, so this isn't another gadget you'll necessarily need to charge every morning.

Charge it up and it can potentially cover an entire week's sleep.

Key Specifications

• Garmin Index Sleep Monitor
• Size: L/XL
• Upper-arm fit: approximately 26–42cm
• Worn on the upper arm
• Sleep tracking
• Sleep stages and sleep score
• Heart-rate monitoring
• Heart Rate Variability (HRV)
• Pulse Ox / SpO₂ monitoring
• Respiration tracking
• Skin-temperature tracking
• Garmin Connect integration
• Built-in rechargeable lithium-ion battery
• Battery life: up to 7 nights with SpO₂
• L/XL band dimensions: approximately 45.2 × 6.4cm
• 5 ATM water rating
• Removable sensor module
• Washable band
• Designed for overnight use

Why We Think It’s Cool

Because you don't have to wear a watch to bed.

Garmin has taken much of the technology normally associated with a smartwatch and put it into a soft upper-arm sleep band.

There are no notifications to read, no bright watch display and nothing you need to interact with during the night.

Put it on. Go to sleep. Check Garmin Connect in the morning.

That's exactly how sleep technology should work.

Perfect Companion to a Garmin Smartwatch

We particularly like the Index Sleep Monitor for existing Garmin users.

Wear your Garmin watch throughout the day for your activity and fitness tracking, then charge the watch overnight while the Index Sleep Monitor takes over your sleep tracking.

Your information can then become part of the wider picture available through Garmin Connect.