I was trying to book a HHonors Reward stay for the Hampton Inn in Tempe to see the Rams play the Cardinals in mid-December. However when I try and book at a couple of hotels in the area, the website says two double beds are the only thing available.

I'm 6'5" so a double bed is not an option. How big a risk do I run if I book the double bed and try and get a king when I arrive? (I'm Gold BTW.)