freemindfades mention of 2 wake ups is interesting.
What if its a gradual awakening?
When you wake up from sleeping at night - when are you awake?
Is it when you are conscious of rolling over and your alarm wont go off for another 5 minutes?
Is it when you throw back the covers and sit or stand?
Is it after you take a shower? Have coffee?
My point is that I think it can sometimes be a gradual thing and something that comes at you from several angles.