Braxton,
If you plan to activate the book jot down trigger words during postviewing and keep to it within the time you allocate. It trains the body mind connection for faster activation and it's purpose is to build curiosity for the book. This especially applies while you are first learning the system and on educational material that you will be tested on.
If you're not able to sleep PhotoRead a book or two. The stimulation of theta brainwaves will often makes PhotoReaders feel sleepy.
Alex