To fall asleep at night, my 4 year old asks me to read him Samuel Coleridge's Rime of the Ancient Marnier. He falls asleep while I'm reading it.
The meter and rhyme are slightly hypnotic and soporific, and he loves the theme of ghosts and ships. However I feel the content of death and Catholicism are too dark for him to ruminate on. So I'd like to find an alternative if possible.
Can you recommend something with a similar sing-song type of rhyme and rhythm, not scary or sad, that's very long so he can fall asleep to it, and not childish either?