This Hilton recently put in new mattresses and bed linens, and let me tell you, they're heaven. One of the best night's sleep I've ever had, especially in a hotel room (and I'm an insomniac with a bad back). Mattress was soft yet supportive, linens smooth and elegant, pillows not too overstuffed. I am seriously considering getting the same ones the next time I buy a mattress/linens.
Pros: heavenly beds, superb view
Cons: it ain't cheap