gonna go with "no". Dreams are amazing, no doubt about that. But they're there because our brain is processing things we do in Waking Life. ..if there's nothing to process.. .. ..I think the closest description is the "limbo" as portrayed in the film "Inception": a forever dreamworld. They say mankind's imagination is limitless, but our consciousness may not be. What I'm saying is, eventually you'd lose lucidity and be in that dreamworld (Limbo) forever and.. ..it just doesn't seem healthy.

Also, this begs the question what happens to coma patients who die while still in the coma? It's proven that their brains are still active, presumably in dream-state. A series called "Oddisey" I think, I used to watch it as a kid, touches on this subject: the subconscious world of the coma patient Jay. He has adventures and struggles against a power/government etc. When his friends talk to him, they appear in his dreamworld.