For a couple of days I haven't seen any hypnagogic imagery of any sort, not when I went to bed, not after WBTB and not while napping (however, to be fair, I haven't had any nap since a month ago).

That is, I go to bed, I see a solid black background and I fall asleep, nothing else.

So, do you know why this is happening to me? It is really demoralizing...

Thanks