Good Afternoon, all. PINGREEMAN is correct. The Petra Marriott hotel is category 4 and cost 20,000 points per night. If you were to stay for 5 nights the 5th reward night is free. The entire stay will only cost 80,000 points, the same as a 4 night stay. To get the 5 night free all five nights must be booked for reward redemption. I hope this helps - thanks!