24 Hour Cafes in the Downtown Area

[winterwhite]

Are there any recommendations for cafes open 24 hours or at least in the very early hours of the day in downtown Seattle?  More to the point, any place that is going to be open at 4am Saturday night/Sunday morning?  I'm catching a train from in the wee hours of the morning and I don't want to make multiple trips to and from downtown after spending the night out.  I'd rather just stay in the vicinity and unfortunately Zeitgeist cafe doesn't keep crazy hours.

Thanks for the help in advance.