The hotel, you mean Marina Bay Sands? I dont know the fares at all.
We visited relatives and lived with them in a huge condo.
But check this:
http://www.marinabaysands.com/hotel/offers.html
Raffles:
5 star Luxury Hotel Singapore - Raffles Singapore Hotel
And dont forget to try the Singapore Sling drink and have some peanuts at Raffles!
OMG, now I have the urge to go there again immideately!