Hilton HHonors members can earn 1,000 points per night from April 1 through June 30, 2011 with their latest Grand Nights promotion. Registration at http://insideflyerus.wpengine.com/link/?4367 is required prior to completing your stay. The offer is valid at all hotels in the Hilton Worldwide portfolio and there is no limit to the number of points members can earn.