So far the changes to Garmin Connect haven't bothered me until now.
The recent changes to the sleep movement graph and the subsequent removal of visible detail have irked me, as I have used the more detailed view to correct any automatic misinterpretations.
Please give us back the detailed view of the sleep movement graph, so that I can correct the sleep duration times where necessary.
One the upside is that I do like the improvements to the Sleep 7 day view - Stages Tab.
Thanks A.
This so much!! 
The sleep feature is so important for me since I struggle with sleep issues and my Vivoactive HR helps me gradually with that. What's happend to the interface is an awful downgrade.
Why isn't the short time before and after falling asleep visible in the timelline anymore? It was easier to check if the detected sleeping-time is correct that way. (like arjm said above)
And the 7-day-overview is barely useful anymore, too (for me at least). It used to provide such a great overview regarding the "chronological" course of the night! Not now anymore.
Please bring back the old view!!
I would also add that there should be a possibility to have multiple sleeping periods! I love to take naps but those can't be tracked 
