Behind the couch. She hid here about 6 times in a row and I kept trying to hint that she should hide elsewhere. "Is Chloe behind the couch AGAIN? She ALWAYS hides behind the couch," I would say as I "searched" for her. Every time I found her, though, the game quickly morphed into a mashup with tag as she crawled back and forth trying to get away from me. Finally, I banned behind the couch as a hiding spot to see if she could be creative.
She didn't care. She found new and "improved" couch-related hiding spots.
So then I banned the couch all together. She didn't care. She had the bestest spot of all in mind. Not only was she laying on her bed pretending to sleep but she was making snoring sounds to really throw me off her scent. LOL!