Pocketed coils are individual springs encased in fabric pockets, allowing them to move independently. This design helps to provide targeted support and reduces motion transfer, making them popular in mattresses and upholstered furniture. The independent movement of each coil adapts to the body's shape, promoting better spinal alignment and comfort. Pocketed coils can enhance sleep quality by minimizing disturbances from a partner's movements, making them a preferred choice for many consumers seeking a restful night's sleep.