Sleeping potion

I wake up a short time later tied to a large comfortable bed. My robe is gone. The witch apparently slipped a sleeping potion into the soup; stripped me naked and then tied me to her bed. I knew she was up to something, but I had thought myself capable of resisting the effects of whatever substance she might put into the soup. Clearly, I was mistaken and her magic is stronger than I suspected.

On the bright side, I'm not dead or injured so the witch doesn't seem to intend me any harm. The question is what exactly does she intend.