I edited my question, which got at least 6 upvotes, explaining why it was not a duplicate. It received an answer that got 16 upvotes. Others suggested merging or reopening procedures. But it's still marked as a duplicate.
the most upvoted answer there does not address the property of intransitive as assigned by the dictionary, which is an integral part of this question. In addition the same answer there is confusing because it says both that transitivity is not a property of verbs and yet ends up talking about transitive verbs. In addition, the same answer does not explicitly deal with verbs other than "sense verbs". So I'm not sure if that answer applies to to sleep.