https://www.starwoodhotels.com/preferredguest/legal/spg_terms.html#11
6. LIMITED PARTICIPATION AT STARWOOD VACATION OWNERSHIP PROPERTIES AND STARWOOD RESIDENCES. INFORMATION FOR EARNING AND REDEEMING STARPOINTS AND OTHER MEMBERSHIP BENEFIT LIMITATIONS
6.1. Due to the nature of Starwood Vacation Ownership properties, special conditions apply to their participation in the Starwood Preferred Guest program as follows:
(a) Members will earn Starpoints for all Eligible Charges
(b) Members do not receive the in-hotel benefits of upgrades and late check-out
(c) Free Night Awards and Cash & Points Awards may only be booked within 365 days of arrival; inventory may be limited; Starpoints acquired through conversion of a vacation ownership interest may not be redeemed at a Starwood Vacation Ownership property.
(d) Instant Awards are not available at every Starwood Vacation Ownership property.
6.2. Members will earn Starpoints for all eligible charges; no in-hotel benefits are offered, and no Cash & Points Awards are accepted at the following properties:
St. Regis Residence Club, Aspen, CO
St Regis Residence Club, New York, NY
Phoenician Residences, Luxury Collection Residence Club, Scottsdale, AZ
6.3 Starpoints issued through Starwood Vacation Ownership, such as, but not limited to: tour incentives, purchase incentives, conversion incentives, sweepstakes, and other giveaway prizes, will expire in six years following the day they are deposited into a Member’s account, regardless of Member activity. All such Starpoints, or any portion thereof, that have not been redeemed by their six-year expiration time will be forfeited without notice.