You didn't mention which month you were talking about.

But, if you're talking about a room-only reservation, then you can go ahead and book, now. And if you cancel more than 5 days before arrival, they credit your money back to your credit card. (Less than 5 days in advance, they charge you for one night's stay.) (If you're talking about a room+ticket booking, then you have to cancel 45 days out, to avoid a penalty. But, the penalty is less, $200.) Might really want to book your room, now. Contemporary does run out of rooms. Sometimes a ways in advance.