I tried WILD last night as I was falling asleep and it almost worked!

I was lying still for right around 15 minutes straight when my eyelids started to twitch rapidly. I thought to myslf, "This is it! I've tricked my body into falling asleep." Then my body went sort of numb/heavy and I felt the vibrations all over. They weren't like the sleep paralysis vibrations though. These were much smaller and they felt... good. It's a bit embarrassing but I got excited and woke up with a semi-erection.

I tried to do it again but it didn't work.

So it definitely seems that you can induce WILD when you're falling asleep. I'll try again tonight.