Enemy of the Gods — C. Hofsetz

Unbeknownst to most humans, there is a place where our consciousness drifts when we sleep. An ancient alien race of self-proclaimed "gods" calls this realm Pangea. For millennia, they needed no intervention from us. Until now.
  
Oblivious to the world of dreams, neuroengineer Zeon is busy being in prison for a crime he didn't commit. But when Pangea's deceitful "gods" contact Zeon, he has no choice but to dive headfirst into their war--a war complicated by a band of human rebels led by the last person he'd ever expect.
 
If the war is lost, it'll be the downfall of Pangea--and without a world to dream in, the entire human race will die with it.