When I’m working on a novel I type the initial draft first thing in the morning. Really: first thing. For preference, I have a cigarette ready-rolled and a coffee percolator loaded the night before; then I simply roll out of bed, fuel up and set to it. I believe the dreaming and imagining faculties are closely related, such that wreathed in night-time visions I find it possible to suspend disbelief in the very act of making stuff up.