60 lbs should put right between 1.5 and 2 inches, according to the sand calculator. If you don't need a DSB, and you don't have any obligate sand feeders in your tank obviously, why do you even need that much? 3/4 inch bed would be enough to look attractive, easy to maintain, and you would avoid potential dead spot areas.
Unless you were planning on adding a burrowing fish or sifting animal, I don't think you need much more than an inch. YMMV, of course....