Lousy sleep.

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I was to bed by 1:30.  Here at 5:30 I am awake, and have been for a while.  I went back to bed, to no good end.  Hmm...  I'll run the fan, maybe I am so used to sound, and air, that I can't quite do without it?  That might be part of it.  There isn't all that much traffic, so that isn't it.  I don't know.  I want sleep.  Yeah, I'll try the fan.  Sleep!  Later, much later, I hope.  Even three more hours would be good.