You may find some useful answers here about the moving part here:
[url]Making WILD your own (updated)]
About the duration…if you try it directly after a couple of hours sleep than it should be just a couple of minutes. Waiting any longer will only kill your motivation big time, so I would recommend just trying it again another day if it takes longer than 15 minutes. Also try to avoid the mental state of waiting for something to happen (like vibrations, SP or HI), because if you do that, it can keep you awake for hours. It’s often better to just count passively and tell yourself to check if you’re already asleep every x counts instead. Over time you will have randomly checked this at every phase of falling asleep and will learn how the different phases feel…most phases you should simply ignore (like HI & SP) and check again a few counts later. Either way, you’ll end up in a dream sooner or later.