There is a discussion in this thread about when SQ will open up more than one saver Suite awards on U.S. routes. My wife and I were waitlisted in Suites from SIN to SFO; we cleared the waitlist roughly 4-5 days before departure. This was in late February. And the Suites class was full. Boy, was it a truly amazing and luxurious travel experience -- especially the private room in the SIN lounge. We couldn't believe how tasteful SQ decor was, especially the saddle leather seats. And the Givenchy pajamas are so cozy and classy. Hope this info helps!