Over 800 hotels are participating in a limited time offer Starwood Hotels sale for weekend stays Thursday – Sunday from March 31 through May 30. Stays must be booked by April 4. Rate plan CCCLTO.
Most hotels require guest arrival Thursday, Friday or Saturday.
Starwood Resorts may be booked for hotel stays any day day of the week. This offer includes upgraded room categories and suites.
Primary restriction is these rates are prepaid and non-refundable.
This thread on FlyerTalk indicates this sale is not a significant discount on other rates, particularly considering the prepaid, nonrefundable terms. Your search results may differ. Good luck.