Memory foam originated as something NASA developed to ease the pressure of G-forces during take off. However, because the foam emitted a smelly gas and was not very durable, it was never used in space, according to Memory Foam Reviews.
How It Works
Tempur-Pedic used the idea and developed its own product, a mattress for medical patients, which it later started selling to the public. Since then, other companies started making memory foam. It has holes that compress under pressure and heat, allowing the mattress to conform and mold to the body.
Once it is ignited, memory foam can burn rapidly and produce severe heat, dense smoke, burning liquid and toxic gases like carbon monoxide and hydrogen cyanide. Dust from memory foam can also burn.