#1 in Sleep Product Research Millions Served Since 2008 Ratings > Mattresses and Bad Back Problems Unbiased Comparisons Based on 22,478 Owner Experiences Some mattresses perform significantly better than others in preventing / relieving pain, including back, hip and shoulder pain. Before discussing which are best, three interrelated terms are important to understand: support, conforming ability, and firmness. Support refers to how well a mattress keeps the sleeper's body on a flat and level plane. Owner experience data shows that support is a key factor in preventing and alleviating pain, especially back pain. Support can be undermined by excessive softness and excessive firmness – but it is most often undermined by sagging of the mattress. Sagging is the top complaint of mattress owners overall with at least 30% reporting a significant problem. Sagging occurs when part of a mattress, usually the middle, becomes compressed and lower than the rest.
Sagging often puts a person's spine into an unnatural position – especially for side and stomach sleepers. Consequently, mattress owner experience data shows a clear connection between sagging and pain, especially back pain. The greater the sagging depth the more likely it is that sagging will cause a person to have discomfort or pain in bed and possibly out of bed. * especially for side and / or stomach sleepers. It should be noted that despite the fact that back pain for many people may occur with less than 1.5 inches of sagging depth, many mattress warranties cover sagging only if it has a depth greater than 1.5 inches. Conforming ability refers to how well a mattress conforms or molds to the contours and curves of a person's body. A mattress has good conforming ability if all of one's body is supported equally by the mattress. A lack of conforming ability means there are gaps in support. The result can be that at least one part of the body – such as the lower back – is placed in an unsupported, unnatural and therefore stressed position which can cause pain.
A lack of conforming ability also often results in some parts of the body – namely shoulders and hips of side sleepers – feeling more pressure than other parts because of unequal support. Such pressure can be a source of significant discomfort. Having the right firmness is an important factor in preventing / relieving pain. Learn more: Mattress Firmness Guide & Comparison. The graph below shows the pain-relieving ability of the different mattress types based on actual owner experiences. The types that are better at reducing (back, hip and shoulder) pain are more supportive, less likely to sag and more likely to have effective conforming ability. Keep in mind that the chart represents what is often but not always the case; model or individual mattress may go against these findings somewhat. Sagging and loss of support (barring mechanical breakdown) is usually less of a problem with airbeds compared to most other bed types. And the air chambers inside an airbed provide at least fair conforming ability and allow for adjustable firmness / support to suit personal preference and sleep position.
Airbeds, however, with little or no comfort layer can be too firm on hips and or shoulders of small- to average-sized side sleepers. While memory foam mattresses can develop problems (sagging, excessive softness, and loss of support) these problems tend to not be as common or serious as they can be with innerspring-based mattresses (memory foam's main competition). Memory foam also provides good conforming ability for average- to large-sized people. Firmness levels tend to be mostly medium to medium-firm. Smaller-sized people may experience excessive pressure points as they tend to not exert adequate pressure on the mattress to benefit from the foam's conforming ability. Latex can develop body impressions and soften to some extent, but these problems tend to not cause widespread pain problems. Latex often conforms moderately to the body. Firmness tends to be medium to firm (but soft varieties are available). Hybrid mattresses often provide above-average support, but such support breaks down for at least 18% of owners within three years due to sagging.
Conforming ability tends to be good if at least two inches of memory foam is present. A variety of firmnesses are available. While waterbeds are often highly conforming, their support is questionable. At least 15% of owners claim that their waterbed causes back pain because of poor support. Firmness can be adjusted somewhat by adding or removing water. Innerspring mattresses often provide at least fair support, but such support breaks down for at least 20% of owners within three years due to sagging. Models with a significant comfort layer often provide fair conforming ability, while models with a minimal comfort layer often provide poor conforming ability especially for small- to average-sized people. Futon mattresses offer mostly fair support and conforming ability. Futons tend to be more firm than soft. While mattress support, mattress conforming ability, and mattress firmness are crucial factors for preventing / relieving pain, they are not the only factors. One's choice of pillow is important as well.
If your pillow – specifically its loft or height – is not compatible with your mattress – specifically its firmness level – then neck, upper spine, head and shoulder discomfort or pain are possible. See our pillow loft guide and calculators to learn how much loft may be best for you.Consumer Reports has updated our mattress Ratings, and the best we’ve tested provide plenty of support, resist bounciness, allow easy movement, and should last for many years before you need to replace it. You won’t find scores for comfort in our Ratings; that’s an individual judgment. But here’s a look at some mattresses that did especially well in back and side support. If you sleep on your back Our tests for back support graph the spine’s natural curves for a range of adults, and then we record how consistently mattresses maintain that curve. Charles P. Rogers Powercore Estate 5000, $1,500 This innerspring isn’t the best choice if you occasionally roll over to your side, but it delivered better back support than any other innerspring—or foam bed—in our tests.
We tested its firmness as medium. Spring Air Back Supporter Natalie, $1,200 Sold at Costco, this memory foam bed also wasn’t notably good for side sleepers, but for the back, it was impressive. The manufacturer claims the mattress is “ultra firm,” but we judged it as medium. Sleep Number i8 Bed, $3,000 Our testers judged this adjustable-air mattress, topped by foam, as soft. But this and its lower-price sibling were among the very best at back support. With these, you can adjust firmness one half of the bed at a time—helpful if two sleep partners like a different feel. Sleep Number c2 Bed, $700 This adjustable-air mattress fared almost as well but for more than $2,000 less. One primary difference is this bed’s firm feel, likely because of the considerably thinner foam topping. Roll over now and then? Both these Sleep Number beds were impressive for side sleepers as well. If you sleep on your side For our side-sleeping test, we check how well a mattress keeps the spine relatively horizontal when someone is lying on his or her side.
All three of our top picks for side sleepers also fared above-average at back support. No mattress, however, received our top score in this test. Serta Perfect Day iSeries Applause, $1,075 This innerspring has gotten a bit difficult to find, but it’s a winner if you can locate it. We judged it as medium, which apparently didn’t hurt in our tests; it’s the top-Rated innerspring. Beautyrest ReCharge Hybrid Jeffrey’s Bay, $1,800 While pricey, this Beautyrest was among our top innersprings, and we judged it as medium. One caveat: Couples might find it a bit bouncy if one partner gets up during the night. Casper The Casper 10”, $850 This online company produced a winner in this memory-foam bed, which we judged as medium. You might wish you could try it out—and if you're shopping in New York City you can—but we found its return policies to be very generous. Need a new mattress? Our online mattress Ratings now include almost 40 models, along with companion, survey-based Ratings of mattress stores and brands.