Dream Catching Pillow (Chris Young)

Idea: A pillow (or possibly a car headrest) that reads your mind while you sleep (or drive), and collects and filters out useful thoughts, such as invention ideas or good jokes, so they can be obtained later instead of being forgotten. Also: mind-reading gadgets that currently exist, such as a "Jedi mind trick" floating ball toy; wondering if jokes you found funny in your dreams would be corny or…