UPDATE: I have just received an email notifying me that my stays will now earn a bonus of up to 10,000 Starpoints if I complete 25 eligible nights during the period. Do remember that you will only earn 250 bonus Starpoints per night for hotels in popular destination - click HERE for the full list of participating properties! If you wish to take advantage of this promotion in Singapore, the most affordable option is the Sheraton Towers Singapore.
A brief check on Sheraton Towers Singapore's room rates for 25 consecutive nights reveal an average room night of S$250++ a night. For 25 consecutive nights, this will cost you S$6,250++ which will give you approximately US$4,343 in eligible spend (8,686 Starpoints or 13,029 Starpoints for Gold/Platinum SPG members). Doing so will also earn you a bonus of 250 Starpoints per night (6,250 Starpoints for 25 nights) and trigger the 10,000 bonus Starpoints. Therefore, by spending S$6,250++, you will earn at least 24,936 Starpoints.
I have previously written about the opportunity to earn double Starpoints® when you stay two nights or more, plus 250 bonus Starpoints for every night you stay at hotels in popular destinations, worldwide from 11 January 2016 to 30 April 2016. According to LoyaltyLobby, this promotion has been extended to include up to 10,000 bonus Starpoints in addition to that bonus earning rate!
I personally do not see the additional 10,000 Bonus Starpoints when I log in and I'm not sure whether or not this is a targeted promotion but feel free to drop a comment below and post your successes with this!