Mattresses by Serta and Sleep Number top the latest list of mattress ratings issued by Consumer Reports.

Meanwhile, the top-rated mattress retailer is once again Cleveland-based Original Mattress Factory, a factory-direct operator.

Consumer Reports, the influential consumer products evaluation company, published its latest lists of mattress and retail ratings in its March issue. A Serta Perfect Day iSeries mattress tops the innerspring list, while a Sleep Number pillowtop mattress tops the memory foam list.

Other recommended innerspring mattresses include models by Beautyrest, Charles P. Rogers, Sealy, and two by Stearns & Foster. Other recommended memory foam mattresses include a Novaform model at Costco, a Bob's Discount Furniture Bob-O-Pedic model, and the Tempur-Pedic Simplicity.