When we went in to check on Rebekah this is where we found her. The tried sleeping inside her pillowcase, hence the pillow sans pillowcase. The next morning I asked her why she was sleeping in the chair. She replied, "Because it was warmer". Not sure I follow that logic.
She has had many adventures in sleeping. Here are some links to previous posts on the subject.
(This last one has links to more of the funny ones.)