Hi. Trying to get the alarm clock to work. I've set it many times and turned off the increasing ring volume. It seems that if I put it in sleep mode it doesn't turn on in the morning. It didn't wake me at all today. Don't know why I can't get it to work. Anyone else having this issue? Any suggestions? I need to use it when I travel. I'd just want to clarify the sleep mode. If you hold the power button down you have 4 options: silent, airplane, sleep and power off. I put it on sleep at night b/c I thought this would save battery life. Sleep modes reads: low power, instant on, wireless off. So with that clarification why doesn't this phone turn on if the alarm is set to wake at a specific time??? Isn't that what instant on means? Any feedback would be appreciated.