Most people prefer a firmer mattress that provides more support. A good mattress should provide support while allowing for the natural curves of the spine. A mattress is too soft if it sags, or if a second person in the bed causes the other to dip toward the center. Studies have found that a medium-firm mattress provides the best back support and alleviates the most back pain. A mattress that is too hard, though, causes aches and pains at pressure points, such as the shoulders and hips. A mattress is too firm if there are gaps between any part of your body and the mattress. Any mattress that helps a person sleep well, so that he/she awakes feeling rested and refreshed, without pain or stiffness, is the best mattress for that individual.
Mattress Composition
The following physical components are the important features of most high-quality mattresses:
Springs and Coils
These give firmness for back support. The wire in the coils can be varying thicknesses. Lower gauge wire is thicker and stiffer, meaning the mattress is firmer. A greater quantity of coils indicates a higher-quality mattress.
Mattress Padding
This is the part that provides comfort. Padding is usually made of polyurethane foam, puffed-up polyester, or cotton batting. Some mattresses have a foam layer just below the quilted top layer. Softer foams feel almost moist to the touch, and firmer foams do not spring back as quickly. Below this layer, there is a layer of cotton batting that caused the mattress to feel firmer in areas such as the middle of the mattress. Finally, there is an insulation layer that lies on top of the coil springs so that they cannot be felt from the top of the mattress. It also protects the coils from damaging the top layers.
Mattress Ticking and Quilting
The outer layer of a mattress is the ticking, a polyester or cotton-polyester blend. The mattress quilting attaches the ticking to the top layers of padding. A good quality mattress has consistent, unbroken stitching.
Box Spring
The box spring adds another level of support to the mattress. They usually consist of a wooden or metal frame with springs. Plain wood frames make mattresses feel harder than one with springs. Purchasing a mattress and box spring as a set maximizes the life of the mattress.
Foam Mattresses
Some other types of mattresses are made of latex foam or "memory" foam. These can be purchased in different densities--the higher the density, the more firm it is.
Mattresses for Specific Back Conditions
In general, the two best sleeping positions are either on your back with a pillow under your knees (to keep stress off the lower back), or on your side with a pillow between your knees (to keep your hips and lower spine aligned). Sleeping on your stomach is not recommended. It places a lot of stress on your lower back and torque on your neck, since you have to keep your head turned to breathe. Also, you should not sleep with your arms above your head, as this can irritate the brachial plexus, a sensitive nerve bundle between your neck and shoulder.
People with degenerative spondylolisthesis or osteoarthritis may prefer an adjustable bed (one that is at a slight incline) as it minimizes joint compression. This type of bed may also be helpful for those who suffer from gastroesophageal reflux (GERD). Patients who have hip bursitis (inflammation of the bursa over the hips) are especially susceptible to pain from a mattress that is too firm. Thick pillow tops or egg crate mattress pads may provide some relief.Check this list:
