Kate Bush's song was on
An escape from this nightmare
Dead place, she woke up
I like your haiku, it's really original to make a reference to the series in a poem. I've seen Stranger Things, so it caught my attention !
The title of your haiku caught my attention and I'm not disappointed to see a reference to the series ! I love how you depicted Vecna through the nightmares he makes his victims suffer from, instead of describing his monster-like physical appearance.
I really like your haiku, I can feel the mood and the story. The past tense verb “woke” fits perfectly.