The biggest failing in most novels and short stories is 'thinness'. 'Thickness' is obtained either through multiple sweeps adding material each time or getting into a 'thick head' so to speak. I find the feeling you have when you get up after an afternoon sleep ideal- no joke this- your head is dream laden, unflustered and focused on now not on the near future; looking even one sentence ahead is a sign of being too focused on the future.