What's the general consensus, should 'single header' be hyphenated or not? The context is for a sports match press release I've just written: '...as it’s a single header with no distractions.' Obviously this is as opposed to a double header, which is what the games usually are (two games one after each other), hence mentioning that it's a single header so people know what they're buying a ticket for. I've just hyphenated it and deleted the hyphen about 3 times, sent it to the person who proof reads for us and they can't decide either, and the Cambridge and Oxford dictionaries also don't have the answer. I'm guessing (and hoping!) that means the answer is 'it doesn't matter.'