I haven't seen anything related to sleep tracking with the AppleWatch.
Hmmm I did some quick reading and it's unclear if Apple Watch can just plain NOT track sleep or if it's simply not a robust part of the software....
Well either way, I feel it has the capability to do so (I mean, why not? It has gyro-sensors / motion tracking and a heart rate monitor)....
Not bashing Apple watch I just wanted to state my thoughts. I really hope the next gen is better because that's thebone I'll be on the look-out for because the watch has some serious potential.
Everyone wondering "what is the watch for," I felt the same way but after now having a wrist-worn device, I can't imagine going back. Ya, I can't respond to texts or do many other things but never missing a phone call or text message is invaluable in my line of work (IT).
What I do find very interesting now is that I wanted a large iphone (I got the 6+) but now that I need to have it on me when I may go walking out of range of the Pebble, I find myself wishing I had a smaller phone once again so it wouldn't be so damn big in my pocket! This is going to be interesting to see how the marketplace changes again and revolves around wrist-worn devices and how maybe others may want a smaller phone again.