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Garmin - Index Sleep Monitor Size: L/XL - Black - (2025)

Model: 010-03024-00
SKU: 6635140
Sold byBest Buy

About this product

How did you sleep? Find out with the Index Sleep Monitor. Comfortable, lightweight and worn on the upper arm, this smart sleep band can capture sleep-tracking and recovery metrics — including sleep score, sleep stages and HRV status — so you can better understand how your body recovers each night (data presented is intended to be a close estimation of metrics tracked). Using skin temperature, advanced women’s health tracking can provide more insight into your menstrual cycle , including better period predictions and past ovulation estimates (this feature is not intended to support conception, contraception or birth control and is not a medical device). If you wear a compatible Garmin smartwatch during the day, your data will seamlessly sync via the Garmin Connect app for more insight into your health and fitness. Plus, get up to 7 nights of battery life.

Features

  • Sleep tracking

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

  • Comfrotable 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.

  • 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.

Specifications

  • Operating System Compatibility
    iPhone, Android
    Built-in Storage
    0 gigabytes
    Metrics Measured
    Duration of sleep stages
    Protective Qualities
    None
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Reviews

Rating 2.8 out of 5 stars with 4 reviews

4 star rating. 2 reviews2 star rating. 1 review1 star rating. 1 review
50% would recommend to a friend

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 2 out of 5 stars

    Not great

    I am heavily invested into the Garmin ecosystem (Epix Gen 2, Edge Explore 2, Index S2) and like to keep all my metrics in one place. Honestly, when the Index Sleep Monitor was released I was not that excited as I had hoped for a whoop like band with all day tracking. However, I wanted to add the sleep monitor for more *accurate Body Battery results. The band is comfortable but I must move around a lot as it has slipped off a few times. I did the sizing as suggested by Garmin and even tried doing it tighter. In terms of sleep data, it's not as good as my Oura Gen 3 (which honestly isn't that good either). The insight provided is also not very useful. If I could sync my Oura data to Garmin Connect I probably wouldn't use the index sleep monitor. If you don't have any other sleep trackers and are already in the Garmin ecosystem it might be worth it but if you have already have a sleep tracker I would probably pass on this.

    Posted by Anon

  • Rated 1 out of 5 stars

    Waste of money

    Do not waste your money on this piece of garbage. It seems to just give random sleep scores and is way less accurate than Garmin watches. Also, had multiple nights that wouldn’t sync with my watch or the app in the morning. I used it for two weeks and finally gave up on it. I waited too long and now it is past the return period so I guess it’s going the trash. Zero stars.

    Posted by Michael

  • Rated 4 out of 5 stars

    Easy to use, low anxiety sleep monitor

    Very comfortable with reasonable accurate metrics. The alarm must set each day and only setup and activated through the garmin app. Otherwise the alarm is nice way to wake up. Best thing is it is not invasive - like a watch - you dont notice it’s there!!

    Posted by Avghomeowner

  • Rated 4 out of 5 stars

    Works great, long battery life.

    I have been using my index sleep monitor for a few weeks now. Its fits well, works great and perfect alternative to wearing the watch. Battery last pretty much all week. My only complaint would be the band can sometimes be a little itchy or bothersome. I have taken it off a couple of times cause it was annoying me in my sleep. I am looking for an alternative for the band. Other then that the device does work great!

    Posted by NateS

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Pros for Garmin - Index Sleep Monitor Size: L/XL - Black - (2025)
There were no pros for this product—There were no pros for this product—Sleep Tracking, Battery Life, Overall Performance, Comfort, DesignBattery Life, Sleep Tracking, Step Counter, Ease of use
Cons for Garmin - Index Sleep Monitor Size: L/XL - Black - (2025)
There were no cons for this product—There were no cons for this product—Size, Scratch Resistance, ConnectivityThere were no cons for this product—

Specs

Questions & Answers

  • Does this sleep monitor provide a sleep score?

    Yes, the Index Sleep Monitor provides a sleep score.

    This question and answer was generated by AI based on customer and product data.

  • Can this sleep monitor track breathing variations?

    Yes, the sleep monitor tracks breathing variations using Pulse Ox.

    This question and answer was generated by AI based on customer and product data.

  • Does this sleep monitor sync data wirelessly?

    Yes, this sleep monitor uses bluetooth for wireless connectivity.

    This question and answer was generated by AI based on customer and product data.

  • What operating systems is this sleep monitor compatible with?

    This sleep monitor is compatible with iPhones.

    This question and answer was generated by AI based on customer and product data.

  • Is there an app that this sleep monitor syncs with?

    Yes, this sleep monitor seamlessly syncs your data with the Garmin Connect smartphone app.

    This question and answer was generated by AI based on customer and product data.
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