A box spring is an important component of sleep technology. It's a component that is often overlooked, but it plays a vital role in overall mattress support.

A box spring is a type of mattress foundation typically consisting of curved metal coils covered with a cloth-wrapped deck and is placed between the mattress and box spring. It is intended to provide improved sleep comfort and support.

The box spring's purpose is to absorb shock and provide better mattress stability. Additionally, when used in conjunction with a mattress, the box spring can provide better support for the mattress and can reduce wear and tear, thus extending the mattress's lifespan. Uneven box springs can cause back problems, sagging mattresses, and discomfort.

Box springs can be paired with any type of mattress and come in two different heights: low-profile and standard. The height of the box spring is determined by the height of the mattress. Standard box springs are typically nine inches tall, while low-profile box springs are usually five inches tall.

When shopping for a new mattress and box spring, it’s important to consider the size of the bed, the type and size of the mattress, and your basal weight—or the weight of you and your sleeping partner—in order to select the appropriate-sized box spring. Twin and full mattresses require the use of two box springs, while queen and king-sized beds require only one box spring.

To ensure your mattress is properly supported, it is important to use the correct kind of box spring for the mattress. For example, memory foam mattresses should be paired with rigid box springs to help maintain the mattress's shape.

Box springs don’t always come with mattresses, but they’re a worthwhile investment since they can dramatically increase the support and comfort of your mattress while ensuring its longevity. If you’re shopping for a box spring, be sure to inspect it carefully to ensure there are no bent or broken frames, and look for a box spring with a manufacturer’s guarantee.