SLEEP?

 I must have had a strange night's sleep last night. 

First, you should know that I woke up with a sore back.  It wasn't terrible; I was able to play golf without a hitch - of course, I took two aspirin that may have helped.  That was different for me but not that strange.  

The strangeness set in when I found one of my two pillows on the floor next to the bed.  Not only was it off the bed, the pillow case had been taken off.  I didn't do that! . . . not that I know of.  What would make me take a pillow case off?  What was I dreaming?  I certainly can't remember.  

If you have any ideas, let me know.  Did this ever happen to you?