Yes, I read your previous post, after I had made mine. Sorry...
Why in the world would Patsy say that the sweater belonged to JB, when she knew all along it was hers. Was this something else that she was just lying about, to try to throw police off of her scent?? I will find that part in her interview, if you want me to.
I wonder if she may have been watching videos, with the pillow at the foot of the bed...as you have stated...and may have fallen asleep there and thats when she wet the bed. I am a strong believer in the bedwetting theory. The pillow never made sense to me, but what you are saying does make sense. Patsy could have told JB that she could watch videos until she fell asleep.