Once you are familiar with the menu of mattress options available, start the shopping process at a store that you know and trust. Once in the store, be sure to “test drive” your new mattress following the S.L.E.E.P. test. Remove your shoes (if you’re a woman, it’s best to go mattress-shopping in jeans or pants) and lie down on several different models in various positions, especially the one you usually sleep in. And remember, those few extra minutes of focusing on the “feel” of different mattress choices can save a lot of time later.