Is it me, or is this mostly a US thing? It seems every time I stay in a US hotel, I get woken up too often by slamming doors. I think part of it is the modern fire rules that require these doors to slam hard if you let them close freely. The other part, I'm not sure. But even in modern hotels in Europe and Asia I don't seem to get woken up too often.
And I have really learned to love the old world hotels that haven't installed the modern doors!