Pocket coils are individual springs encased in fabric pockets, designed to provide support and comfort in mattresses. Each coil moves independently, allowing for better contouring to the body and reducing motion transfer between sleeping partners. This design helps maintain proper spinal alignment and can enhance overall sleep quality. The pocket coil system is often found in innerspring mattresses, making them a popular choice for those seeking a balance of firmness and softness. These coils can vary in gauge and number, affecting the mattress's feel and durability. Overall, pocket coils offer a tailored sleeping experience for various preferences.