I think I have some advice for you. Keep in mind I am still new here, and not anywhere near a master of WILD.
The first part sounds alright, that is just your body going to rest. You are supposed to gradually lose feeling, so that is the right track.
This could be a problem, as with WILD you must fall asleep. You want to stay aware, not awake. As for staying aware, I don’t think I can help much. Maybe try counting, or if you have a clock that ticks just focus on the next click, without losing awareness (if that ticking does not keep you up, that is). It will be easier to stay aware the more you try WILD.
Edit: If you haven’t seen this, then see it: Making WILD your own (updated)