Logarithmic Potential and My Poor Sleep

I had scheduled a meeting with my advisor for 19 January, Sunday. I had to cancel that in the morning. I was feeling drowsy. On the clock, my sleep time was a little over 7 hours but I was feeling exhausted.
I guess now I know why. The logarithmic potential has been used to model sleep-wake transitions during deep sleep. I had been reading up on various applications of logarithmic potential in the week preceding 19 January. Somehow, it affected my sleep !

I am partly kidding !