Sealy Posturepedic

If you don't expect anyone to sleep next to you, you don't necessarily need a mattress with pocketed coils (which minimize transfer of movement). Instead, reviewers recommend the continuously coiled Sealy Posturepedic mattress, which helps to align your body via heavy-gauge steel coils that are hinged together for stability. Reviewers also say the Posturepedic line is a good choice for heavier individuals. However, as with all innerspring mattresses, the Sealy will eventually sag and require replacement within eight to ten years -- or sometimes less. For couples, though, reviewers prefer the Simmons Beautyrest World Class (*Est. $1,050 to $3,200, with foundation), which is designed to keep one person's tossing and turning from disrupting the other's rest. If you are on a tighter budget, the Simmons DeepSleep mattress (*Est. $350 to $1,300, depending on size, including foundation) isn't as comfortable, but does cost less.

The New York Times, The Daily Southtown and Good Housekeeping all discuss the ins and outs of buying a mattress, including innerspring models like the Sealy Posturepedic.