I am a bit confused about the Bedtime feature. I just set it up to wake up at 4:30 am Monday - Friday. I am assuming I will get an alarm notification at this time. If my phone is on mute (or the volume is low), will this alarm still go off with a loud tone? This was a problem in previous iOS versions. I would have an alarm set to wake up, but would never hear the notification sound because my phone was on mute. Also for Sleep Analysis. How does my phone know that I am actually asleep if I do not have the watch to detect movement? Thanks!