Creepy books with a strong sense of wrongness and unreality (e.g. I Saw The TV Glow, Ubik)

I love media that feels like you're trapped in a bad lucid dream, especially when small details and inconsistencies only become apparent when you reread/rewatch it. I want some well written and interesting books that give me the same sort of unstable feeling that ISTTVG and Ubik gave me, where nothing can really be trusted [...]