Fenix 6x Pro not recording sleep, pulse ox, and respiration - plus total newbie.

Hi All,

I got a Fenix 6X Pro as a birthday present and although lots to get my head around in terms of manual interaction opposed to my Apple Watch, I’m really enjoying it. One issue I have at the moment (and sorry for the long explanation) is that the sleep has stopped recording.

So I got it last Tuesday, set it up etc and having a good play around with apps and watch faces and generally learning about it. On Thursday (I’ve worked out it records sleep for the previous day, so this was Wednesday nights sleep)  it recorded sleep automatically - all good, On Friday’s (Thursday nights sleep) it only recorded that I’d had just over 4 hours sleep, when I’d had around 7-8, and in the data there was a big gap in the middle of the night. I had to then charge it so didn’t wear it Friday night to record Saturday’s sleep. Wore it last night and it recorded nothing!!!

Searching through the forum’s I’ve got all the correct settings etc turned on, it’s set as my preferred activity tracker. It’s tight on my wrist, any tighter and it’s uncomfortable. 

I have added the sleep widget into the favourites today on the watch, but can’t work out why it recorded sleep perfectly on the first night when all I have done is set the watch etc up, and it seems to have gotten worse since and I hadn’t added the sleep widget. 

I do have tattoo’s which I thought might interfere with the wrist connection, but it records my heartbeat all the time during the day so it can’t be that. I’m at a loss, please help!!!

Also as a total Garmin newbie - In the UK, any other general hints, tips, tricks are all appreciated. 

Thanks.