Fail for me, but I screwed it up. When I got up for WBTB I had an upset stomach and a couple really sore joints from work I was doing earlier. I only took one Excedrin, fearing that taking two or drinking coffee would prevent me from getting back to sleep at all - which would have been disastrous today, as I have much to do.
I hesitate to call this a failure, but it really is. . . so I'm 2/4 so far.