Not trying to resurrect a dead thread, but there is a relatively new option near Changi Airport -
Capri Hotel Residences.
Check out the website for more details
YOUR SPACE IN SINGAPORE
With 313 spacious studios with kitchenettes, and the smartest facilities designed around your lifestyle, Capri by Fraser in Singapore is ideally located just moments from Expo and 5-minutes from Changi Airport.
SPACES AND FACILITIES
313 studios, all with kitchenettes
Fully-equipped gym overlooking the pool
Steam Room & Sauna
Spa Suite with ofuro-style private baths and TVs
Boardroom with touchscreen capabilities / Meeting Room (up to 40 pax)
Deli in the lobby space for fresh meals, lunch boxes and TV dinners
Poolside Bar
Laundrettes equipped with Xbox Kinect, Wii etc on every floor
Large undercover car park *charges apply