What is the purpose of under carpet padding and how does it affect the overall comfort and durability of a carpet?

Under carpet padding serves as a cushioning layer between the carpet and the floor, providing support and insulation. It enhances comfort by adding softness underfoot and helps absorb impact from foot traffic, reducing wear and tear on the carpet. Additionally, the padding helps to extend the lifespan of the carpet by preventing it from rubbing against the rough surface of the floor, reducing friction and potential damage.