Screen name.
Because after I visited Jerusalem on Purim a few years ago, I went to daven at the Kotel late at night. And I fell in love with this time of day (the time to say Tikkun Hatzot & after)
I found that there is an amazing amount of clarity in davening at this time & that there is a different type of energy. I wish I could explain it, but if you ever wake up after midnight & study or daven, you will see what I am talking about. I believe the Shulchan Aruch mentions this clarity & such.