https://chessdatabase.science/....wiki/Double_Mattress
The Benefits of a Pocket Spring Double Mattress A pocket-sprung mattress is comprised of springs which are individually enclosed and shaped to the shape of your body for a perfect fit. They also reduce motion transfer when sharing the bed. The number of springs (from 1000 to 2000 per Kingsize) is not as important as the tension of springs and natural fillings. Comfort A mattress made of pocket springs is made up of hundreds or thousands of tiny springs that are wrapped in pockets of fabric. Each