Understanding Box Springs: Your Complete Guide

A box spring is more than just a simple bed base—it's a crucial component that ensures your mattress stays well-supported for a comfortable night's sleep. In this guide, we'll explore the purpose of a box spring, when you might need one, how to choose the right type, and more.

What Does a Box Spring Do?

While your mattress offers direct support to your body, the box spring plays a vital role in supporting the mattress itself. Acting as a sturdy foundation, it absorbs shock and reduces wear on your mattress, ultimately extending its lifespan and ensuring you continue to enjoy a restful sleep.

Box springs also elevate the height of your mattress, making it easier to get in and out of bed. Typically placed atop a bed frame, they form part of a complete bed set, providing stability and support.

Do You Need a Box Spring?

While many modern mattresses are designed to be comfortable without a box spring, certain factors may indicate its necessity. For instance, some mattress warranties require the use of a box spring, and they're essential if you're using a bed frame or desire extra height and support.

If you're unsure whether you need a box spring, consider consulting our Foundation Guide or reaching out to one of our mattress experts.

When Should You Replace Your Box Spring?

Similar to mattresses, box springs have a lifespan of around 10 years. However, signs of wear such as broken slats or sagging indicate the need for a replacement sooner. A worn-out box spring can compromise the support of your mattress, leading to discomfort and potentially voiding your mattress warranty.

How to Set Up and Choose a Box Spring

Setting up a box spring is usually straightforward, with most models coming fully assembled. However, considerations such as bed frame compatibility and desired height may influence your choice. Measure your mattress and bed frame to ensure a proper fit, and decide whether a low-profile or standard box spring suits your preferences.

Types of Box Springs

Box springs come in various constructions and heights, ranging from ultra-low profile to standard options. Coil box springs offer traditional support, while zero-deflection and semi-flex varieties provide alternative options. Split box springs, available for larger mattresses, offer added convenience when navigating tight spaces.

Ultra low profile box springs are usually about 2 inches tall. The low profile box springs are 5 inches tall and regular box springs are generally 9 inches in height. 

Box Spring Sizes

Box springs are available in standard mattress sizes, ensuring compatibility with your bed. Make sure to check the size of your mattress and purchase the same size box spring so there is no overhang. It is made simple with standard sizes such as twin, twin xl, full, queen, king, and California king.

Protecting Your Mattress Warranty

Many mattress warranties require the use of a box spring, though exceptions exist for platform beds or adjustable bases. Ensuring your box spring is in good condition is essential to maintain your mattress warranty and prevent damage.

Shop Box Springs

← Previous Post Next Post →