I had the same reaction. It might not be reasonable to ask for something like that overnight, but with a month or more of notice that seems like it should be N

I had the same reaction. It might not be reasonable to ask for something like that overnight, but with a month or more of notice that seems like it should be No Big Deal. That's less than a page a day, on average, so the actual writing is almost trivial. A page's worth of thought and research doesn't seem like an unreasonable daily burden except maybe for something like a dense mathematical proof.