Stay three nights in a luxurious condominium and your third night is free.  If you can't stay three nights, check out as late as you like on day three. 

Condominium units include queen or king bedrooms with full bath, and a spacious living room area with a queen sleeper sofa, gas or wood burning fireplace, and other first class amenities.

Package starts at $416 for three weeknights and $479 for three nights including weekends.