Out of all the crazy things the human brain can do, the one that has always seemed the strangest to me is dreaming - especially because no one finds it very strange. Well, I think passing out every night and falling through vivid, complex hallucinations is kind of cool. And I really like it as a theme in a story.

So I'm looking for some more manga that features dreams as a major theme. Maybe in the manga the dream world is an actual world that the protagonist travels to by falling asleep. Maybe it's a manga about dream interpretation. Or something like the awesome After School Nightmare.

I'm fine with every genre and demographic except ecchi and hentai, but I'm not very fond of graphic sex or violence.

Shinreigari: Another Side is close; I can only vouch for the anime (which was very good), though.
A lot of it is out-of-body stuff but I would say the majority is dreams.

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Please Save My Earth is the only one I can think of besides ASN.

The Dreaming

it's a horror

Shut Hell--maybe not completely sure

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Angel Beats--best anime of the 2010 spring season

Coo no sekai
Waters

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This week's favorites:

- Golden Kamui





ççççççç[Ô .Ô] tsutopodus© will eat your manga and steal your cats!

Fukai Nemuri no Hana
Two Volumes
Girl needs to go through dreams to wake her twin sister up and save other people from staying in the dream world.

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Second this. Awesome stories. Too bad the scanlators stopped though.