Recently I followed a brief, singulair Yoga workshop.
It was especially designed to calm and relax the body and mind with physical excercise and breathing. I often do some of the physical/breathing excercises before bed but one specific technique I learned there, which involves imagination, helps me get into deep SP withing minutes.

The specific technique explained:
It's quite simple although it demands some undivided, focussed ATTENTION and a tad bit of willpower.

Here's what you do:
-You lay down in bed on your Back. Take some time to "feel" you body.
Become aware of how it feels in different parts of your body and feel the pressure points of your body on the matrass.

-Now start breathing deeply but calmly. Exhale slower than you inhale.

-Now everytime you breathe; Inhale through your Nose and Exhale through your Ankles. Yes that sounds funny, but Imagine Breathing out of your ankles. Use your fantasy to imagine a feeling of breath or wind exitting from your Ankles. It might also help if ypou imagine the tention, like glowing embers in your tissue, being blown out of an hole in your ankles like a dusty cloud.
This way you can breath out all tention. When doing this you will probably notice a feeling of a strong tingling/buzzing exitting your ankles and lowerlegs, sometimes accompanied by involuntairy muscle jerks. Keep doing this untill your lower legs and feet are completely relaxed. To the point of hardily being able to feel them.

-Now Inhale through your Nose, but Exhale through your Knees.
Repeat the same thing but then for your knees.

-Now do the same but then Exhale through your Waste.

-" " Exhale through your Neck

-" " Exhale through your Shoulders

-" " Exhale through your Elbows

-" " Exhale through your Wrists

Now at this point you should be so relaxed you can easily roll into a dream any moment. SP is already achieved and sleep is on the way so I guess this would make it significantly easier to stay aware till when the Dreams come. I had serveral close encounters with Dreams starting to take form last night, but ended up having some very vivid dreams anyways.

Also I noticed how I would feel ithc, or the urge to roll over, but was MUCh better able to ignore those impulses. I was too deeply relaxed to be bothered by those impulses. So I didn't have a hard time at all ignoring them.

People try this and give me FEEDBACK to let me know how it works for you, okay?