I usually avoid Tiger on the weekends due to the crowds, but there were certainly none Sunday night!  We hit the TH (Master Link) at about 19:00 and got to the summit in time to see alpenglow on the top of Rainier and a dull blazing orange post-sunset hue to the west.  A brilliant 3/4 moon and starlight kept us from needing our lamps until the descent from the summit, which was in mint condition for night riding.  Did not see another person or bike from top to bottom.