I have had strange sleep patterns lately too ... also the muscles in my body realizing they have not been fed enough energy lately and spontaneously deciding to stop working. Annoying when I am walking, but I learned how to fall and not hurt myself years ago. One of my emails lately contained the phrase "I am typing this from the floor right now". Getting back to normal now (I hope) but it meant skipping the Yule celebrations this week.
Glnnk...