Customer reviews from Garmin
Garmin - Index Sleep Monitor Size: L/XL - Black - (2025)
Average customer rating
3.3
(223 Reviews)
Rating breakdown 223 reviews
5 Stars
66
4 Stars
48
3 Stars
38
2 Stars
29
1 Star
42
Customer Reviews for Garmin - Index Sleep Monitor Size: L/XL - Black - (2025)
Customer Rating
1
Poor product
on January 24, 2026
Posted by: Garmin failure
Does not work. Opened a case and never heard back from Garmin. Disappointed
Written by a customer while visiting Garmin
Customer Rating
5
Sleep data without having to wear a watch
on January 23, 2026
Posted by: KirstenM
Like it so far. I get the same data I got from my watch but it feels more comfortable.
Written by a customer while visiting Garmin
Customer Rating
3
It’s OK
on January 23, 2026
Posted by: geri22
bought a few weeks ago and find that my Apple Watch is much more accurate. I planned on wearing the sleep arm band at night while charging my watch but find the results disappointing.
Written by a customer while visiting Garmin
Customer Rating
5
Garmin sleep sensor
on January 18, 2026
Posted by: puzi1010
user friendly, very comfortable and a lof of useful sleeping time data
Written by a customer while visiting Garmin
Customer Rating
2
Doesn't stay connected...
on January 16, 2026
Posted by: UnhappyW/Garmin
And re-pairing via BT is downright clunky and nearly impossible. Now I know I need to ”tap the device 15 to 20 times " to out into pairing mode. After Garmin says restart phone, restart app, uninstall app. Etc. Crazy. Just start with the tap method. It's all so exhausting.
And before we go there my epix pro gen 2 has zero issues staying connected
Written by a customer while visiting Garmin
Customer Rating
5
An excellent sleep monitor
on January 15, 2026
Posted by: MattZH
I have been in the Garmin ecosystem for some time, and utilized my watch to sleep with. Wanted to take the off at night, better comfort, and this was a good option. Very comfortable. Stays in place. Gives all the information my fenix 6 does and temp, breathing interruptions.
Written by a customer while visiting Garmin
Customer Rating
5
Very comfortable and easy to use
on January 13, 2026
Posted by: Alycia L
Device is easy to use and much more comfortable than a watch to sleep with.
Written by a customer while visiting ExpertVoice.com
Customer Rating
4
Comfortable, but connection problems
on January 12, 2026
Posted by: MaestroDon
I find the Index Sleep Monitor to be much more comfortable than wearing my Forerunner watch to bed. I've had a couple of times when the Sleep Monitor lost connection. I had to restore the connection in order for it to offload data.
I think it's a good product and I'll continue to use it. Unfortunately, It doesn't seem to work seamlessly all the time. Hope they fix the wrinkles.
Written by a customer while visiting Garmin