When you WILD you usually face one of two problems: Not being able to fall asleep, or falling asleep too fast.
Remember that when you’re not WILDing to fall asleep while being awake. You can’t do two opposite things at once. What you’re trying to do is falling asleep while being aware.
One of the reasons you fall asleep without noticing is because you succumb to one of the random thoughts or HIs that pop up into your head. I think you may notice this; as you’re falling asleep your mind wanders off severely.
To counter this, you need to force back your mind to WILD. This needs you to notice that you’re wandering off, and as long as you can do this you’re fine. Somewhere at the end of your WILD, this may become somewhat difficult. If you lose concentration for 5 seconds that will be enough to fall asleep without awareness.
One of the tricks to doing this is to watch the random thoughts with awareness. I will give you an example:
A random, vivid thought of a banana with wings comes into your head. It’s flying away! You remark how silly it is, and are eager for the next random thought or HI.
Make sure not to interact with these thoughts, instead just passively observe them. Here is an example of what NOT to do:
A random vivid thought of a banana with wings comes into your head. It’s flying away! You decide to chase it and see where it goes.
If you do that, you will just end up in a normal dream.
By the way, you can use the search function to check what people previously asked, it might help you out.