I've had only limited success doing WILD's. I have studied many techniques and there seems to be three different schools of thought regarding how to achieve them in regards to the amount of movement.

1) Get in a position and stay completely still. Don't move at all and resist the urge to roll over. The body sends test signals to see if you are awake. The body and mind are independent. The body doesn't know if the mind is actually asleep. If you resist the urge long enough, you body is tricked and falls asleep while your mind remains aware.

Note: This has rarely if ever worked for me. Maybe because I have back and muscle pain chronically, but staying still for a long period of time is very uncomfortable. I have laid still for very long periods of time and think this technique must only work well for those who can relax easily and stay relaxed in a single position. I have read many other accounts that say the same and have attempted this approach many times.

2) Move as much as you like. After all you are trying to fall asleep.. why would you do something unnatural that will keep you awake? Just move as much as you need until you are comfortable and focus on falling asleep. The key here is a mental anchor to keep your mind alert... whether it be counting or focusing on a noise in the background, moving a finger, etc.

Note: This has worked for me a couple times but very often I fall asleep. Even when I use an anchor, my mind tends to wander and poof I am asleep.

3) Sort of a variation of 1 and 2... You should shift two or three times after several minutes in each position until you find that final spot where you are totally relaxed and almost asleep. Then focus on your mental anchor while trying to keep your mind alert. I won't focus too much on this because it is very similar to number 2.

So what's my point?? Techniques 1 and 2 are a bit at odds with each other. If we are trying to fall asleep, why would we ever do something like number 1 if it were uncomfortable?

This technique only makes sense if the test signals between the mind and body are a real thing. Do we know this for sure? I have yet to see any evidence. I know for myself I have laid perfectly still for an hour or two, probably even as long as 3 or 4 hours with no affect at all. I have attempted this may times. Why do I think this is? Because it is uncomfortable and who can fall asleep when they are uncomfortable?

If anyone has seen the lucidology videos, the guy swears by this theory. He says even if it's agonizing just ignore it and then SP will come. But, this doesn't work for so many people... Why? Maybe because this theory is wrong. I don't know. It's ironic that it's vital that you be relaxed for it to work, yet you sit in a position for long periods of time all while making yourself totally uncomfortable and not relaxed. I see this technique posted a lot and obviously it works for many.

Which brings me to technique number 2.
So this sounded like the answer for me after so many failed attempts at the lie frozen still approach.. It made so much sense. Just do what you normally do to fall asleep. I got to be comfortable. I even managed to fall sleep... too much and that is the problem.

I'm trying to figure out how technique 1 and 2 compliment each other. Is technique 1 really a trick and nothing to do with technique 2... Does it rely on that discomfort to stay alert or does it only work for those who do well in a single position for long periods of time?

I mean think about it... Why do I have to lie perfectly still in the first position I lay in? Why can't I just keep moving until I am totally comfortable. Even though it's not stated, it seems to rely on the idea of "being uncomfortable"... Feeling an urge to move and then ignoring it.

Let me summarize:
Technique 1 only makes sense if there really is a test signal and you are tricking he body into falling asleep... Or the discomfort of the position promotes alertness. Share your theory on why this works... Why you think it makes sense to do anything different with your body whatsoever then what you would to fall asleep normally?

Techniques 2 and 3 make sense from a falling asleep standpoint but rely solely on keeping the mind alert. They don't trick the body into falling asleep per se and rely solely on mental focus. If this works for you, what type of anchor do you use? Nothing I have tried works well.