Book like Dune?

I'm looking for a book to help me sleep.
I loved Dune, I was trapped with it's story, I found it to be one of the best novels I ever read if not the best.
And reading it really helped me relax at night, probably because I could forget everything else. And that helped me fall sound asleep.
I need a book, or several, to help me achieve this.

Thank you all.