Stopped by Sears this evening looking at a Simmons mattress named 'St. Bees Plush Firm Evenloft'  The unusual thing is there are no 'tucks' in the ticking (how'dya like that).

Got to thinking, a flat non-tucked surface would seem better for any mattress. 

These mattress covers that have tucks or buttons essentially have hills and valleys all over.  What's so good about that?  With my less than perfect shoulder, .. if it ends up laying over a valley, then I don't get as much cushion as my upper arm which several inches away.  See what I mean?

Maybe different strokes for different folks, but I would prefer only an even, flat surface.