I won't renew platinum without a mattress run which I'm probably not going to do. I've seen advice on some of the blogs and Facebook sites saying to rent a conference room at a Marriott under the "Rewarding Events" program. The website is unclear about whether a rewarding event earns elite nights or not. It says 10 elite nights for a rewarding event, but then when I try to reserve a conference room and get to the checkout page, there's no mention of elite nights. Some people think you need to reserve a block of at least 10 rooms to get 10 elite nights (which makes sense). But some people claim they've booked a conference room without hotel rooms, and they've received 10 elite nights. Does it depend on the property? Anyone tried this?