I would grab cpu spy from the market and see if its actually getting into deep sleep. I have had my notifications sound too when I thought it was asleep and went to check on it and my dock battery was drained. Looked at cpu spy and it never actually went into deep sleep. Usually a simple reboot will get it to sleep normally again. In my experience my email, voice, or any other notifications (unless an alarm is set) do not ring when in deep sleep.
I believe you're incorrect on that. As long as you have wifi to never turn off, then you will get a notification. To eliminate the sound, the notification sound needs to be muted-which is what I use sound manager for.
I believe you're incorrect on that. As long as you have wifi to never turn off, then you will get a notification. To eliminate the sound, the notification sound needs to be muted-which is what I use sound manager for.