About 70 million people in the U.S. report suffering from sleep related pain, per Time Magazine, and the problem is getting worse. Sleep deprivation is reported to be the #1 health concern in the U.S. today.
Memory foam was actually made by mistake while trying to make regular rebounding foam. NASA explored using it in the space capsule to reduce g-force, but it never went into space due to toxicity issues.
Since 2007, every mattress by law must contain fire blocker or retardant. Many of the materials used in fire blocker off-gas noxious and sometimes toxic fumes that can interrupt sleep cycles and cause you to toss and turn.
A study conducted by Stanford research labs documented that driving a car while sleep deprived was as debilitating as driving a car when intoxicated. Sleep problem have also been linked to serious diseases like stroke and diabetes.