I have my basal rate set to start at 1-1/2 times what my normal daily rate is about 4 hours before I wake up. So, basically I set mine to start at 4 AM at the higher rate. This way, I wake up with a completely normal number for myself.
Other people only start the higher rate around one or two hours before they wake up, but since my schedule is really "unscheduled", 4 AM works really well for me.
What kind of pump do you have?