Nightmare Escape — Greg Grunberg

Ben has a problem. When he sleeps he dreams, and when he dreams, they're all nightmares! But he can also jump into other people's dreams. So when his friends start falling victim to an evil dream-monster that prevents them from waking, Ben knows he has to help them. Easier said than done when dreams can shift and the monster knows his way around the ever-changing landscape of the mind! With help from a talking rabbit-companion who has a mysterious past, Ben might just be able to defeat the monster and save his friends ... if he can figure out how to use the power within him against his enemies.