Customer reviews from Garmin
Garmin - Index Sleep Monitor Size: S/M - Black - (2025)
Average customer rating
3.3
(202 Reviews)
Rating breakdown 202 reviews
5 Stars
59
4 Stars
43
3 Stars
36
2 Stars
26
1 Star
38
Customer Reviews for Garmin - Index Sleep Monitor Size: S/M - Black - (2025)
Customer Rating
5
Nice Upgrade
on January 26, 2026
Posted by: Luke0276
I'd been using a Garmin watch for years to monitor sleep. I wanted something independent of the watch, so I didn't miss out on data while the watch was charging overnight. The Index has been a pleasant upgrade. The cuff is comfortable and stays in place all night. Data is reliable and seems consistent. I haven't used the alarm function much, since I'm usually up before it goes off. Overall, highly recommend!
Written by a customer while visiting Garmin
Customer Rating
5
Love it!
on January 25, 2026
Posted by: Ken 1
I had tried wearing a watch at night and absolutely hated it. This is extremely comfortable, you do not even know you have it on. There have been several mornings that I forgot I had it on and was walking around the house with it still on my arm.
I only wish the battery lasted longer between charges. From what I read you should get about 7 days...I've gotten 5 at the most, usually 4.
I only wish the battery lasted longer between charges. From what I read you should get about 7 days...I've gotten 5 at the most, usually 4.
Written by a customer while visiting Garmin
Customer Rating
1
Poor insight information
on January 25, 2026
Posted by: RodrigoA7
After using this Garmin sleep monitor for a month, I found it to be inaccurate in providing information and difficult to use due to its poor app synchronization, making it hard to track sleep effectively. Additionally, the battery life is inadequate.
Written by a customer while visiting Garmin
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