Before-after study to determine the effectiveness of an adjustable wood frame-foam and wool mattress bed-system (The Natura Mattress System) in reducing chronic back pain in adults
Objective and Design: The purpose of this 6-week Before-After trial was to investigate the effectiveness of the Natura Mattress System in reducing back pain by >or = 1 unit on the 11-Point Pain Severity Scale (p< or = 0.05), in…