This rolling window must have hit me while I was sleeping. I went to bed Gold, and woke up Platinum.

Since I'm in the middle of a FI stay, I don't expect this to affect me at all for this stay.

For future reservations that I currently have, will the hotel automatically see my new status and hand me the cookies and water upon checkin? Or do I have to have Marriott "reset" my res like the airlines usually need to do upon promotion?