The nightmare Adventures of Doctor Sleep

Over years Y/n L/n has his imagination of a good life when he was a kid but it turn into a nightmare. He conquer it when he was a kid but now at age 40 his nightmares are back. It was then he went to nightmare worlds and other dreams. Y/n was then stuck and even tho it's a dream then he dies in real life. Y/n then met friends in other dream worlds until he is in his dream so he could use his dream powers but would it help against the nightmares at him.