Originally Posted by
Flying for Fun
That is why it is no longer called "The 5th night Free." It is called "Stay 5, Pay for 4."
Marriott's new “Stay 5, Pay for 4”
Marriott Bonvoy is known for “5th Night Free,” allowing members to get a fifth night free when they redeem points. This is being rebranded as “Stay for 5, Pay for 4.” With this, members will receive the lowest-point night for free.
The only caveat that I would add is that single daily reservations may preclude multi-day discount promotions at the property. Here is an example from The Westin Resort & Spa, Puerto Vallarta.
Package Rates
James
You can't use the free night award certs in a pay 4 stay 5/fifth night free reservation anyways.