yes, getting excited is a very good thing(add it to MILD and BAM!!), but it does push the circadian rhythm, sooo... Here is where all the visualization skills you gained by meditation becomes handy. During the waiting( waiting, not while falling asleep, unless you can fall asleep while heavily visualizing) of the WBTB, visualize something inspiring. Most important thing, don't do it in bed, or you fall asleep(maybe)