The Differences Between Pocket Coil and Innerspring Mattresses

A pocket coil is known by many names: pocket spring, wrapped coils, encased springs, or Marshall coils. Pocket coil mattresses are the most popular type of innerspring mattress available.

What is the Difference Between Innerspring and Pocket Coil?

    The Workings of an Innerspring Mattress A traditional innerspring mattress, or open coil, has a network of metal coils that are all connected. This means that when pressure is applied, the springs all react together. This transfers motion, so if your partner moves you’ll feel it. Additionally, because the coils all move together, traditional innerspring mattresses provide less comfort and don’t spring back as easily. They also don’t contour around your body as much as a pocket coil mattress.

      The Pocket Coil Mattress: A Different Approach Pocket coils, on the other hand, are not connected and act on their own. This means that if you apply pressure to a pocket sprung or coil sprung mattress, only the coils being pressed down will react, whereas on an innerspring mattress all of the surrounding coils will compress. This approach allows the individual pocket coil mattress to contour to your body better and doesn’t transfer motion as much as a traditional innerspring mattress. This technology could save your relationship one day.

     Open Coil vs Pocket Sprung

Open coil mattresses also use a different type of coil than pocket sprung mattresses. While pocket springs are thin-gauged and knotless, open coils are wired together.

    The open coils are designed differently as well, using an hourglass shape so that the springs are wider on top and bottom, but thinner in the middle. Pocket springs maintain their width for the entire length of the coil.