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
1
Only worked one night
on August 18, 2025
Posted by: sag47
I had no problem syncing it the first time and wore it that night and it was comfortable and it gave me readings, the second night nothing. I tried to resync it and was not able to get it to sync so I sent it back.
Written by a customer while visiting Garmin
Customer Rating
3
Almost There
on August 18, 2025
Posted by: QDawg
I wanted this device to get more detailed sleep metrics, and to give my wrist a break from my watch while I'm sleeping. It accomplishes this well, but there are still some things that need tweaking with the integration into the TrueUp system to give a complete Unified Training Status.
Written by a customer while visiting Garmin
Customer Rating
4
Silent Alarm Helps Keep Me Married
on August 17, 2025
Posted by: NotDeadYet!
If you are like me, and I imagine a number of Garmin users, you are up before sunrise getting in your run or ride. However, my wife needs her sleep and an audible alarm wakes her up and often she can’t get back to sleep. My Garmin watch has a silent alarm; however, it is a bit bulky for me and often wakes me up when I roll over. So, I was excited when Garmin introduced the Index Sleep Monitor embedded in a soft cloth and worn on the upper arm. It is incredibly comfortable, which helps with my sleep, and gently vibrates to wake me up based on the time I set in the Garmin Connect app, which keeps my wife happy. You can set the vibration level to low, medium, or high.
I also believe the Sleep Monitor does a better job of sleep tracking than my Garmin watch, as the watch sometimes struggles to accurately take readings through my skinny, bony wrist and thin skin. Also, I often turn off the oxygen saturation sensor on my watch since it is energy hungry, whereas it is always turned on for my Sleep Monitor while maintaining excellent battery life. The sleep data is great, but I would have bought it just for the comfortable, silent alarm.
The only reason I don’t give the product a 5 star rating is because it doesn’t always easily synch with Garmin Connect, which is something I never have to think about with my watch or bike computer.
Written by a customer while visiting Garmin
Customer Rating
1
Sleep Band does not record sleep correctly
on August 17, 2025
Posted by: Brrc2000
I bought the Garmin Sleep Band almost a month ago. It does not record sleep correctly on most nights. Some nights, it records only a few hours of sleep. Other nights, it does not record sleep at all. The worst part is that the bad data from the Sleep Band is used to override good data from my Forerunner 45 in the Garmin Connect app. Then, the Sleep Coach uses the bad data to tell me how bad I must feel and how much extra sleep I need. It is all very frustrating and depressing.
Written by a customer while visiting Garmin
Customer Rating
4
Easy to wear at night
on August 17, 2025
Posted by: Sidney_143
I like all the results my Garmin sleep index gives me.
Written by a customer while visiting Garmin
Customer Rating
4
Like it isn't event there
on August 17, 2025
Posted by: JTw1
I've had this for a month and love it. My biggest wish is that you got to see the live feed data not just the imported data. This was a must to not wear my watch every night. I do wish that the battery was a tad longer, but when it's just sitting at home it really doesn't matter.
Written by a customer while visiting Garmin
Customer Rating
2
It does the job but not great.
on August 17, 2025
Posted by: Jencantwait
I bought this and have used it every night almost. It does the job but for the first few days I wasn’t sure so I kept my watch on. There was one night after I stopped wearing the watch, it didn’t load sleep data. I am a sleeper that moves and found the sleep band does not stay in place. It consistently slips and I am constantly adjusting in the middle of the night. If the Velcro isn’t on perfectly it will be unaligned and scratch the skin of the arm causing an irritation. Being the band is only most accurate on the upper arm above the elbow, I find this product is not worth the money and better to just keep the watch on for sleep tracking. I would not spend the money again or recommend the band to others.
Written by a customer while visiting Garmin
Customer Rating
1
Currently an expensive and very small brick
on August 16, 2025
Posted by: SAS0001
The sleep monitor worked great for 2 nights but then stopped syncing. It also won’t re-pair with the phone after multiple attempts and according to Garmin support there is no way to reset it using the Garmin express app on a computer. So now I have a non-working device with no clear way to fix it.
Written by a customer while visiting Garmin