> hypnopompic.

From the link:

The invididual is aware that these are hallucinations; the frightening part, in many cases, is the inability to react to them, even being unable to make a sound. In other cases one may enjoy truly vivid imaginations. The term was coined by the 19th century French psychologist Alfred Maury.

That's like lucid dreaming, except that that's meant to be more intentional, I think. It's also considered a state of intense or other-worldly awareness between sleep and dream, awake and asleep. Some children's books depict the 'film' between day and night as a doorway, and certainly others have speculated that the threshold is significant.