On the plus side this property is one of the few in Napa that will sell rooms for one weekend night (many have 2 night minimums) and also has award night inventory.
On the minus side there is an extraordinary "no refund" policy that applies to award night reservations (at least 60 days for the nights I checked). Quite punitive - the only other place I've seen that is Aspen and Vail (non-Hyatt) properties peak ski dates.