All I can find is this on the gpp website, in the redeem express awards section:

Redeem some of your Gold Points at the hotel for movies, room upgrades and more.
Awards vary by hotel so be sure to request a list at the hotel front desk when you check in.

Beverage (soda, coffee or tea): 1,000 Gold Points Required
$4 Laundry Credit: 3,000 Gold Points Required
Choice of appetizer or dessert: 8,000 Gold Points Required
Pay TV Movie: 10,000 Gold Points Required
Room upgrade: 10,000 Gold Points Required
Bottle of wine (up to $30 value): 15,000 Gold Points Required
Dinner for two (alcohol not included): 35,000 Gold Points Required

Terms and Conditions
* Express Awards must be requested directly at the hotel.
* Express Awards and their point values vary by hotel and are valid only at participating properties.