I have been using AutoSleep for one month. I had not previously wanted to do it because charging at night simplifies daily use—and I have had the watch die multiple times which never happened before I started sleep tracking.
However, I am going to stick with sleep tracking because it is causing me to improve my sleep.
I like to stay up late and get up early, but sometimes this trims my actual sleep far too much.
Seeing data, feeling the result and using reminders to start thinking about wrapping up the day is improving my life.
I’m not surprised at all Apple is working on their own app.
That said, the charging thing is a major problem. It takes way too long to charge past 50%. And I don’t like interrupting my daily activity tracking to do it.
That's pretty much why I started tracking sleep as well. I can see the data over time, know what I'm doing right, what I need to tweak. With SleepWatch, you can see data that impacts your quality of sleep such as, temperature, bio needs, sleeping with pet, partner, exercise, or stress. The key to tracking anything with the watch is to review it over time and or be mindful of doing your best to get into good sleep habits or whatever you're tracking. I can say since tracking sleep, I have definitely improved my sleep habits. Something I could have done without the Apple Watch for sure, but by using it, I am mindful of it. Just like exercise.
When I upgraded to S4 from my S2, I kept it so one is always charged when I wake up. the other goes on the charger. Considering what Apple gives offers for trade, it had much more value to me to have a 2nd watch. Now I realize not everyone agrees with this approach or is in this position, but even with my S2, I was tracking sleep. I charged it while I was in the shower & getting ready for work. Wore it all day and about 2-3 hours before bed, I put it on the charger. That worked well for me because in that time I was pretty much sitting in a recliner anyway.