Apple is rumoured to be working on sleep tracking. Of course it already exists by third parties: I use SleepWatch. I thought the charging thing would be deadly

Apple is rumoured to be working on sleep tracking. Of course it already exists by third parties: I use SleepWatch. I thought the charging thing would be deadly for my use of it, but it is so much less of a thing than I imagined it would be. Firstly, sleep tracking uses surprisingly little battery. Often I'll see less than an 8% drop over night. Additionally I just drop it on the charger in the morning while doing my morning routines and that gets it quickly to 100%. Very occasionally I do a short burst in the evening. I never thought it would be worth that sort of hassle, but it is a thousand fold. I send and receive messages from the watch. Answer calls. Look up things. Use the activity track. Use it to control media. It is my alarm clock. With the recent betas of 6.0 the usability has improved dramatically -- before all sorts of operations would yield "I can't do that" sorts of responses, whereas now I'm getting just brilliant results. I was a naysayer of the thing (I strongly felt that if you couldn't go days without recharging it was a dud). The health features got me to give a shot, and I am a very strong believer now. It is an absolutely wonderful device.