The Swan & Dolphin have cost 50,000 Marriott points per night. The Swan is a Westin hotel and the Dolphin is a Sheraton, both Marriott brands. Marriott recently added peak and off-peak pricing. This means that hotel nights could cost as little as 40,000 points per night or as many as 60,000.
Here are some samples we found of peak and off-peak pricing. However, most months still cost 50,000 points per night.
100,000 Sign Up Bonus
Chase recently increased the Marriott Bonvoy Boundless Card sign up bonus to 100,000 points. This should get you two nights at the Swan or Dolphin on most nights throughout the year.