A good nights sleep is one of the most important aspects of choosing a hotel for me, and I have found that the "Heavenly bed" at Westin and the "Sweet Sleeper" at Sheratons cannot be beat. As a result, I have had over 75 nights at SPG in the last year and only 15 or 20 at other hotels, including 6 Marriott. I find a wide divergence of beds at Marriott and Hilton properties, some good some not.