Pimp My Mail lets you set your LED based on who's emailing...
Pimp my Mail - LED Status Light Customizer for Email - Entertainment BlackBerry Apps - Crackberry BlackBerry Software Store
You could set Red LEDs for important emails and Blue or Green for non-important. It would still go off, but at least you would know if it was important or not before getting out of bed.
Also, have you thought of separating work from pleasure? I have no idea of your situation, but if your important emails went to a separate address than your "unimportant" calls, you could make your "unimportant" emails have a silent alert.
To make it easy:
Default (all red LED)
Email Address 1 - alert1
Email Address 2 - alert2 (or silent)
Pimp My Mail
Email 1 -
Sender A - Blue
Sender B - Red
Email 2-
Sender C - Green
Sender D - Orange
(all other emails - red LED)
BerryBuzz
Email 1 - alert1 - Blue LED
Email 2 - alert2 (or silent) - Red LED
BerryBuzz + Pimp
Email 1 - alert1 - Blue LED (all senders)
Specific Sender 1 - Red
Email 2 - alert2 - Green LED (all senders)
I use default+berrybuzz. I have work emails set to alert and red, and personal set to silent and blue. This way, work emails alert, and personal will just turn my LED on with blue, as not to disturb anyone around me.