Here’s a fascinating fact: the first mattresses were made in Persia around the 37th century. They were goatskins filled with water—the original waterbeds. It took more than 5,000 years for the innerspring mattress to be invented in 1871.
Fast forward two millennia and numerous mattress innovations have emerged to deliver us better rest. Those technology advancements—including the rise of green mattress manufacturing—mean we are retiring our mattresses more frequently than before; on average, we replace our mattress every seven years.