A spring mattress is known for its robust construction and long-lasting comfort. Inside a spring mattress lies an intricate system of coils and padding that work together to provide support, pressure relief, and durability. In this article, we will explore what’s inside a spring mattress, how it’s constructed, and the various benefits it offers for a better night’s sleep.
What’s Inside a Spring Mattress: The Core Structure

At the heart of any spring mattress is the spring system, which provides the essential support for the mattress. These springs come in various types, each offering different benefits based on your needs.
Types of Springs Inside a Spring Mattress
- Bonnell Springs: Bonnell springs are the oldest and most commonly used in spring mattresses. They are hourglass-shaped coils that are interconnected, offering a firm and even support.
- Pocket Springs: These are individual coils wrapped in fabric, allowing them to move independently. Pocket springs provide enhanced motion isolation and support, which is ideal for couples.
- Continuous Coil Springs: Continuous coils are created from a single wire twisted to form interconnected coils. They offer durability and firm support across the mattress.
- Offset Springs: Offset springs are designed with hinges that provide flexibility. These springs offer good body contouring while ensuring consistent support.
Each of these spring types contributes to different comfort levels and durability, making it easier for you to choose the best option based on your sleep preferences.
Layers Above the Spring Core
While the springs form the core support system of a mattress, the comfort layers above them are crucial to overall comfort. These layers help enhance the mattress’s softness, temperature regulation, and pressure relief.
Comfort Layer: The Top Layer for Softness
The comfort layer sits atop the springs and is typically made from materials like memory foam, latex, or polyester. It provides immediate comfort when lying down by offering a soft, plush surface.
Quilted Top: Added Softness and Luxury
A quilted top is a soft, padded layer stitched into the fabric of the mattress. This layer not only provides additional comfort but also improves the mattress’s durability by evenly distributing weight across the surface.
Support Layer: Added Durability
The support layer helps reinforce the comfort layer, contributing to the mattress’s overall firmness. Made from high-density foam or felt, this layer ensures that the springs maintain optimal support over time.
Insulator Pad: Enhanced Durability and Support
An insulator pad sits above the spring system to prevent the springs from poking through and ensures the overall mattress stays intact. It also adds to the mattress’s durability by providing an additional barrier between the springs and the comfort layers.
The Role of Springs in Comfort and Support

The spring system inside the mattress plays a key role in ensuring proper spinal alignment and overall comfort. The springs work together to provide a supportive and responsive sleep surface.
Pressure Relief and Body Contouring
Spring mattresses help distribute body weight evenly, offering relief from pressure points. Pocket springs, in particular, contour to the body’s natural shape, reducing stress on areas like the back, hips, and shoulders.
Motion Isolation for a Restful Sleep
One of the standout features of spring mattresses is their motion isolation capabilities, especially those with pocket springs. Because each spring moves independently, motion from one side of the mattress doesn’t affect the other, making it ideal for couples.
Durability and Longevity
Spring mattresses, especially those with high-quality coils, are known for their durability. They can maintain their shape and comfort for many years, making them a sound investment for anyone looking for long-term support.
Benefits of Spring Mattresses
Spring mattresses come with several benefits that contribute to a better night’s sleep, making them a preferred choice for many.
Breathability and Temperature Regulation
The design of spring mattresses allows for better air circulation. The spaces between the coils allow heat to escape, keeping the mattress cool throughout the night. This is a significant benefit for individuals who tend to sleep hot.
Versatile Firmness Options
Spring mattresses come in a variety of firmness levels to suit different preferences. Whether you prefer a softer surface for comfort or a firmer one for support, there’s a spring mattress that can meet your needs.
Affordable and Value for Money
While high-end spring mattresses can be expensive, there are affordable options available. Bonnell spring systems, in particular, offer a budget-friendly option without compromising on support.
Strong Edge Support
Many spring mattresses offer reinforced edges, making it easier to get in and out of bed without feeling like the mattress will collapse. Strong edge support also increases the usable surface area of the mattress.
Wide Variety of Mattress Styles
Spring mattresses come in a wide range of designs, from traditional open-coil systems to advanced pocket coil constructions. This variety allows you to find a mattress that suits your specific sleep needs and preferences.
Choosing the Right Spring Mattress

Choosing the perfect spring mattress requires considering several factors, such as your preferred firmness level, type of spring system, and budget. Here’s what you should keep in mind:
- Spring System Type: Choose between Bonnell, pocket, or continuous coils based on your need for motion isolation and support.
- Firmness Level: Determine your desired level of firmness based on your sleeping position and comfort preferences.
- Budget: Consider how much you’re willing to spend. There are high-quality spring mattresses available at a variety of price points.
- Layers and Comfort: Evaluate the layers above the spring system to ensure they meet your needs for softness, support, and durability.
Conclusion
Spring mattresses offer a timeless sleep solution, providing a balanced combination of support, comfort, and durability. Whether you choose a Bonnell spring mattress for its affordability or a pocket spring mattress for its motion isolation, there’s an option that caters to every sleep need. By understanding the components inside a spring mattress, you can make an informed choice to ensure a better night’s sleep for years to come.
FAQ’s
A well-maintained spring mattress typically lasts between 8 to 10 years. Regular care, like rotating the mattress, can extend its lifespan.
Pocket springs are individually wrapped, offering better motion isolation and more personalized support. Open coil springs are interconnected and offer a firmer, less responsive feel.
Spring mattresses tend to offer better temperature regulation and edge support, while memory foam excels in body contouring. The choice depends on personal comfort preferences.
Yes, most spring mattresses are compatible with adjustable bed frames. However, it’s always best to check the manufacturer’s guidelines for compatibility.
A higher coil count generally indicates more support and comfort, but the quality of the coils, along with the mattress’s overall construction, plays a more significant role in performance.