Is it me or is the sleep tracking/analysis rubbish?

For me it is rubbish.

It counts time I quietly watch a movie before I fall in sleep to the total sleep time. 

It misses time I know I’m awake at nights. 

It’s just something Garmin adds so they can say their watches have many many features.

And really, who needs confirmation from their watch that they had a good/bad nightsleep. Learn to listen to your body!

I do wish Garmin spend more time fixing bugs and less time on this kind of non-features.

I find it quite accurate in the times and it seems to catch if I wake up to use the bathroom, etc. As to if I'm really in deep sleep or REM when it says, I don't know. I seem to get to 'short' bursts of deep sleep - one near beginning and one around middle of night, 4-5 rems and the rest light.

 I find the stress widget more useful for that. It usually shows a high stress through out the night if I've had a bad night and a consistent low if I've had a good night. Interesting is after a night on the town where its pretty much 100% stress all night!

I've never had a watch that did anything close to consistently reliable sleep tracking. Admittedly, I did not have Fitbit but judging from what users are saying online, I doubt it's any more accurate, just a different kind of inaccurate. 
Every watch I've had was guilty of thinking I'm asleep while I was playing videogames at night, thought I'm still asleep while just lying in bed in the morning, and so on.

It's all just estimates based on real world data. If you look at how polysomnography is done, it should be easy to understand that a watch simply cannot do that alone, because all it has to go on is accelerometer data a heart-rate. Sometimes, it's estimates may be representative of what's actually going on, but other times they won't be. 

For me it doesn't work.

Lost all faith after I checked how I slept during a night when my kid had nightmares. Had to get out of bed multiple times during the night and remembered at which times these happened. Checked in the morning what F5x had registered.  It said I was in deep sleep when I was actually walking around the house, climbing stairs, you name it.

FWIW I went back to Apple watch for sleep tracking as you don't have to give it a guesstimate of when you go to bed/wake up and it tracks naps as well.

It's not why I bought the watch so it doesn't bother me too much.

I had a cheaper Fitbit charge 2 before and the sleep, stairs climbed and heart rate (from wrist) were much more accurate. Embarrassingly so.

The sleep tracking is a joke and worthless.  I have used a Misfit Ray and my wife has one too, and they are superperb for sleep tracking and put the Fenix5 to shame.

I have also found that I can walk around the house and go up and down the stairs during my apparent "sleep".  The stairs tracking doesn't register the stairs climbed, either

Former Member how do you know the misfit ray was suberb? It also just put some uncheckable deepsleep, lightsleep and rem sleep. Or is getting start and end time correct already superb?

just wondering. For me the sleeptracking is a worthless feature which I don’t use. To bad you pay for it anyway. 

But is you want your stairs to be counted go cycling. Somehow during cycling my watch counts stairs like crazy! An other fine and well implemented garmin feature.

(I do like the batterylife in a compact case with fast gps fix and good readable screen, if someone is wondering if I do like something about my watch)

It accurately records the start and end of sleep and creates a visual representation of your sleep pattern which after looking at daily for a few years, I would say accurately shows a good visual pattern of how you sleep. It rarely gets it wrong.

Yes I agree.  Some things about the Fenix5 are good but most of the fitness related claims are a joke.  I actually bought my Fenix to capture rides to replace my 10 old Edge 500.  That old device puts the Fenix5 to shame with its GPS accuracy and total climb data.

Before F5 I was using Fitbit blaze and I can tell you that sleep tracking was 10x better especially with last firmware.  Everything else was pretty basic though