Thank you for your replies, sivason and Sageous.

Quote Originally Posted by Sageous View Post
I thought you were looking for ways to avoid working from "SP?"
I'll have to learn the "without-SP" method first. Until then I have to do it always from SP.

Seriously, the reason you're having trouble is because you are asking your unconscious to offer up new dream schemata at a time when it may not be prepared to do so. This is because of two things, I think: First, during naps or WBTB your unconscious is caught a little off guard and hasn't had time to lay all the foundations necessary to have a scrolling dream scene, so it responds to your exit with lots of grayness or, often, by simply returning you wakefulness. Second, your state during WILD is much different than DILD, much closer to wakefulness, so your unconscious might simply not have enough of a foothold in your physical condition (that of post-night's-sleep near wakefulness) to offer dreams that can shout down impending consciousness.
It makes perfect sense, and those were exactly my thoughts as well.

It seems kind of like turning on your computer and immediately trying to open a large file, but the operating system needs more time to "settle".