Fossil just announced the availability of their new Fossil Hybrid HR models with e-ink display. They have heart monitoring, sleep tracking, and alarm support in their app along with Google Fit integration.
That app appears to have been around for a while for older hybrid watches from Fossil. Maybe there is some support that can be reused?
Sleep tracking and smart alarms would be the interesting things to have in place.
+1 I heard a lot of people on the pebble sub thinking about this one. Also with a good battery life like 2 Weeks it would be a great watch for tracking your sleep. Since older Fossils are supported I would hope that we can use this watch soon.