Pocket springs, also called pocket coils, are individual coil springs each sewn into their own small fabric pocket, rather than wired together as a single unit. Because each spring can compress independently, pocket sprung seating responds to the specific weight and position of whoever is sitting, giving support that follows the body more closely than a linked spring system.
This construction is often paired with a foam or fibre topper for comfort and used mainly in the seat base of quality sofas, since it is more complex and costly to manufacture than sinuous springs. Pocket sprung seat bases tend to keep their shape and support well over many years of use. Our buying guide covers spring types alongside foam options.