Register by March 31, 2015 for Starwood Preferred Guest’s latest bonus offer. The SPG Double Play promotion offers double Starpoints on eligible stays of two or more consecutive nights through April 15, 2015. In addition to the double points stay, members can get 1,000 bonus points for every five nights you stay during the promotion, up to 4,000 bonus Starpoints (four times, 20 nights). The five nights do not have to be consecutive to get the bonus.

You must register by March 31, 2015, at http://www.spg.com/doubleplay . There is a list of nonparticipating hotels at http://insideflyerus.wpengine.com/link/?11950 .

Bottom line: It’s important to check the nonparticipating list before making reservations; some of the hotels that have opted out of the promotion include Sheraton Fisherman’s Wharf Hotel, W Hollywood and W Los Angeles – Westwood in California, Walt Disney World Dolphin and Swan in Florida, W New York – Union Square, The Park Lane Hotel in London, The Westin Palace in Madrid and many others.

Another SPG promotion that you can combine with this promotion is earning 500 Starpoints per stay, up to three stays, when you register at http://insideflyerus.wpengine.com/link/?11951 and use the SPG app to book a stay with your American Express Card. All stays must be completed by March 31, 2015.