Turn off all notifications except for phone calls at night?

[cuellarm]

I leave my phone on my nightstand every night, in case of an emergency call in the middle of the night. However, not sure if it's the Evo or Sprint, sometimes I'll hear a voicemail notification or some other beep in the middle of the night. Is there a way (app, setting...) so that at night the phone will only sound for incoming calls, but leave all other notifications off so that you won't be waking up for a voicemail, a facebook update or something like that? Thanks!