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.

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.

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.

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| Pros for Garmin - Index Sleep Monitor Size: S/M - Black - (2025) | |||
|---|---|---|---|
| There were no pros for this product— |
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.
Way more comfortable than wearing my Enduro 3 to sleep. Plus, this gives pulse ox readings so I can turn that off on my watch to save battery. The only con is it doesn't (yet) give Health Stats in Connect, but should with an update.
Posted by Jentx15
Had for a while and some nights it will record sleep an stop halfway through the night. But will record heart rate and O2 the whole night. Also i have to turn off watch so it will be primary for the app. Should be alittle less painful to get sleep data. Maybe they will have a update to allow the app to know what device i am currently wearing and make this alittle less of a quessing game
Posted by MavicYosik
Does exactly what it is described to do - monitors sleep. It is very comfortable; I don't realize I have it on. I like having the additional data that it monitors.
Posted by JaceFLL
