I've written a few poems with a really similar theme to this; the idea of lying awake at night and being tempted or harassed by demons and ghosts who would steal your pure and happy thoughts and lead you down a path of misery!
A dark piece, but one - ultimately - laced with stubborn hope!
All the best and I hope you are well,
Ben
Thanks so much for your insightful comment :)
You always nail the emotions portrayed on the head.
I appreciate your kind words and hope you are doing well, too.