According to a study by the Université du Québec à Trois-Rivières published in the Journal of the Canadian Chiropractic Association, a mattress with lumbar support could minimize discomfort for people with spinal conditions. In the study, an inflatable cushion placed underneath the lumbar area reduces contact pressure on the pelvic area and redistributes it over a larger area. A mattress with lumbar support would minimize unfavorable forces on the spine and minimize back pain.
According to the University of South Carolina, mattresses with convoluted foam often provide good support and comfort. These mattresses usually look like egg cartons on its surface, feel soft and are flexible. It should be firm enough to provide enough spine support so the spine does not sag in the bed. The spine should maintain its natural S-curve while on the bed. Stomach sleepers should sleep on firmer mattresses than those who sleep on their backs or sides.
Spring mattresses work better in minimizing back pain compared to Latex mattresses, according to Anthony Guanciale, M.D., the associate professor and director of the Division of Spine Surgery in the University of Cincinnati. Generally, a spring mattress has to have enough coils to both provide enough support and allow for the spine's natural curve. According to Reader's Digest Canada, a good, firm spring mattress should have a sturdy wire or foam border and a 500--800 coil count.