Neverland Ranch is a huge place, with dozens of bedrooms and plenty of places to sleep. Which is why the most unsettling part of the entire saga is not so much that the children were there, often without adult supervision, but that more often than not - Macaulay Culkin included - the kids would spend the night in Jackson's bed. Next to Jackson.
Macaulay has been quick to deny that there was anything sexual about it. Many reports, from multiple children involved, have said that while they did sleep in the same bed both the boys and MJ would always be wearing clothes. Still, even if nothing happened there's no denying that this is a pretty creepy thing to do. It certainly doesn't help your reputation. Unfortunately we may never know the truth about it.