Why Pocket Springs Matter. Pocket springs are individually wrapped coils that respond to your body’s unique shape and movement. Unlike traditional spring systems, pocket springs work independently — offering precise support exactly where you need it. This means less pressure on your joints and better motion isolation for undisturbed sleep. A mattress with a higher spring count offers a more supportive, tailored feel — great for all sleep positions. Plus, the open coil structure helps regulate temperature, keeping your bed cooler throughout the night