I didn't ask, but was given breakfast coupons for both check in and check out days at a Hyatt in NYC when their lounge was closed. We had breakfast in the restaurant both days. YMMV.

Breakfast is one of the things that, IMHO, makes Hyatt MUCH better than other hotel chains. The others have gone 'cheap' on breakfast while Hyatt's kept up high quality offerings. Just mention smoked salmon being offered in the lounge on other hotel forums - the usual response is that it hasn't been seen in a Marriott/SPG/Hilton lounge in the last 5 years ...