One should choose a mattress by deciding on the amount of support that is needed. Ideally, the mattress should support the body in a neutral position that supports the curve of the spine while keeping the head, shoulders, buttocks and heels properly aligned.
Innerspring mattresses are the best choice for those who are very overweight or experience back pain. The mattress provides extra support, which makes it easier to get out of bed. A latex mattress or a latex mattress cover is also a good choice for people who experience back pain because they both provide a combination of comfort and support for the back. Memory foam mattresses are a good choice for those who have trouble getting comfortable in bed because of chronic fatigue or some types of muscle pain. An adjustable bed works well for people who suffer from sleep apnea or acid reflux, as well as those who experience hip or back pain.
Although a firm mattress is best for people who experience lower back pain, a mattress that is too firm pushes on the body's main pressure points, which pushes the body out of alignment. A mattress that is too soft does not support the body properly, causing the body to flop back and sink into the mattress.