What’s the difference between a $1,000 Sleep Number adjustable air mattress and one that costs three times that? Not much according to Consumer Reports’ latest mattress tests. The Sleep Number c2 Bed matched the Sleep Number i8 bed Pillowtop, $3,000, in our tests for back and side support. Even better, we bought the Sleep Number c2 Bed on sale for $700. Here are the details plus news on other new mattresses in our tests. For our body-support tests we graph the spine’s natural curve on a range of test subjects. Then we evaluate back support by recording how thoroughly a mattress maintains that curve. For side support, we check whether the mattress keeps the spine relatively horizontal when a test subject lies on her side. The best mattresses have a good score or better for both. In our tests, across various firmness settings, the Sleep Number c2 Bed and the more expensive Sleep Number i8 bed Pillowtop both delivered impressive side support and even better back support.
And the c2 Bed was more stable, which means less annoying to your mate when you change sleep positions. When we took a closer look at the two mattresses we discovered that both were comprised of the same pair of identical air bladders—one for each side, so each partner can customize firmness. But with the Sleep Number c2 Bed, the foam layer on top was significantly thinner than the one you get with the i8 bed. While this difference wouldn’t show up in our body-support tests, you might notice a difference in overall comfort. That’s another reason to try out mattresses in the store before buying, as we routinely advise. Among adjustable air beds, we also tested the Tempur-Pedic Tempur-Choice Supreme, at $3,200 the most expensive of the trio in our tests. Although it was impressive for back support, the Tempur-Pedic was an also-ran behind the two recommended Sleep Numbers. But another Tempur-Pedic, the $1,200 Tempur-Pedic Tempur Simplicity, was among our top picks in foam mattresses.
Once a mattress starts showing its age and is lumpy or sagging, we suggest replacing it even if it’s newer than the 10 years normally recommended. Before shopping, check our buying guide for mattresses and look at our mattress Ratings of 25 innerspring, foam, and adjustable air mattresses priced as low as $515. We also have reader recommendations for mattress retailers and brands. —Ed Perratore (@EdPerratore on Twitter) View and compare all Mattresses ratings.Considering that most people spend about one-third of their lives in bed, it's hardly surprising that a mattress can have a big impact on your overall health. There are several types of mattresses, each with a particular set of advantages and disadvantages. Traditional innerspring models remain the most popular type, but newer alternatives -- including memory foam, latex foam, air mattresses with adjustable firmness "zones" (as exemplified by the Sleep Number brand) and organic mattresses made of various materials -- have gained favor with owners.
One of the big issues with buying a new mattress is that it generally requires a fairly significant cash outlay -- in most cases about $500 for a twin; $1000 or more for a queen or king. Some cost two or three times as much, depending upon features. And that often does not include the box spring or other foundation. However, with as much time as you spend in bed, and the average length of time you'll own the mattress, it pays to buy the best one you can afford. Figuring out exactly how much a mattress costs can also be difficult. Most mattress companies have a specific line (or several) of a mattress (Posturepedic by Sealy and Beautyrest by Simmons are good examples of this), and then, within that line, have dozens of different models that are not detailed on the manufacturer's website. So, while several retailers may carry the same line, there is little consistency from retailer to retailer. In addition, the same model may be sold under different names at different retailers.
Because of that, for the purposes of this report, we don't rate specific mattresses; rather, we rate mattress lines that get the best reviews across the board. As for price, we have quoted the manufacturer's suggested retail price, which are usually much higher than the actual prices you'll find in stores. We discuss price in more detail -- as well as how to get the best deal -- on our buying guide page. Also, if a mattress is just one of several bedroom purchases you're planning, check out our related reports on bed sheets, pillows and mattress toppers. Innerspring mattresses have been the most popular type for decades, and countless styles, features and options are available. Models vary greatly in cost, from a few hundred dollars to several thousand. Price differences may depend on the number and size of the coils, the amount and type of padding, and details such as fabric and stitching. Compared with other types, innerspring mattresses tend to retain less body heat and come in a wider range of firmness levels.
They do tend to transfer more motion, which can be a concern if you share your bed with a partner, but can be a plus during sex. They're also less durable and more prone to sagging than other types of mattresses. Most experts say innerspring mattresses should be replaced after 10 years at most. Memory foam mattresses are made from visco-elastic foam, a type of foam that molds itself to the body. While the best-known manufacturer is Tempur-Pedic, quite a few companies offer less expensive versions. Many owners love sleeping on memory foam because of how well it conforms to the curves and lines of the body. Memory foam is also a good choice if you have a restless partner as it minimizes movement transfer. Going from innerspring to memory foam can take some getting used to, but most who give it time say making the switch was well worth it. Some people find that memory foam traps heat -- a complaint that makers have addressed with the development of gel-infused memory foam, which is designed to create a cooler sleeping surface.
Latex foam mattresses, which are made from natural or synthetic rubber, are springier than memory foam mattresses and don't retain as much body heat. They are also resistant to mold and dust mites. In addition, mattresses made of natural latex are eco-friendly, since natural latex is a renewable resource. Many latex mattresses go for several thousand dollars for a queen set, although some lower-end brands that incorporate synthetic latex and a less expensive processing method can run as low as $3000 (for twin). Some mattresses may help to ease back pain. Experts say that adjustable, permanent-use air mattresses may be the best choice for back pain sufferers. Don't confuse them with inflatable, temporary air mattresses, though, which we cover in a separate report; those aren't considered suitable for long-term use. Permanent air mattresses, such as those sold under the Sleep Number Bed label, have air chambers that can be adjusted to provide customized support, and are topped with padding.