What happens if you don't use a box spring?

Because there is no support for the mattress beyond the perimeter frame, without a boxspring, your mattress would receive insufficient support, not to mention most likely void the warranty.

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It’s a simple enough question: do you need a boxspring with a mattress? With so many advancements to mattress technology, is it really still necessary to use a boxspring?

The short answer? Maybe. Whether or not you will need a boxspring depends on your mattress warranty and the type of bed frame or foundation you have. So how do you know when you need a boxspring and when you can do without? This guide breaks down why you need a boxspring, when to know if you need one, and boxspring alternatives.

Why do you need a boxspring?

Boxsprings serve two basic, but important functions.

Foundation – They provide a strong and stable foundation for your mattress. This helps increase the longevity of your mattress by reducing shock, wear, and tear. – They provide a strong and stable foundation for your mattress. This helps increase the longevity of your mattress by reducing shock, wear, and tear. Increased Height – They elevate the mattress off the floor. This simply helps to make it easier to get in and out of bed. It’s also important to note that some mattress warranties require you to use the mattress on a boxspring or platform bed. If you fail to do so, this can void your warranty. Be sure to confirm the details of your warranty before deciding on your foundation and / or boxspring.

When do you need a boxspring?

Most traditional innerspring mattresses always needed a boxspring to maintain their support, but today that’s not necessarily the case. Here are a few scenarios of different bed frame types with a breakdown of whether a boxspring would probably be required or not.

Collapsible metal frame

With a collapsible metal frame, you would need a boxspring. Because there is no support for the mattress beyond the perimeter frame, without a boxspring, your mattress would receive insufficient support, not to mention most likely void the warranty.

Example – Zinus Compack 9-Leg support bed frame

Reinforced metal bed frame

More supportive that a collapsible metal frame, a reinforced metal frame would not generally need a boxspring. The additional metal supports across the frame help provide even weight distribution throughout the frame. This limits sagging or uneven wear on the mattress and essentially offers the same supportive foundation that a traditional boxspring would provide.

Example – Purple bed frame and the Zinus Smartbase

Platform bed frame – solid

Platform beds utilize a solid surface, so you would not need a boxspring. This solid surface accomplishes the same goal of the boxspring by providing a stable platform. Generally, platform beds are lower than a traditional mattress would be with a boxspring, which can be a desirable and modern aesthetic you may want to achieve for your bedroom. However, for older sleepers or those who suffer from back, hip, or joint pain, a low platform bed may be more difficult to get in and out of.

Platform bed frame – slats

Some platform beds are a slight variation of the traditional platform bed. These use slats for support instead of the solid foundation. As long as the slats are close enough together to satisfy the mattress warranty, this frame would not need a boxspring either.

Example – Zinus Modern Studio slat frame and the Forever Foundation

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As a general rule of thumb, slats should not exceed 4” apart from each other. The slats can come flexed or straight and are available in wood, metal, plastics, or even composite materials. Steel slats are going to be the strongest in these types of frames since they create a more rigid support. Lastly, the slat gap is commonly indicated on mattress warranties. Ensure your slat gaps are appropriate to your mattress warranty. Want the Sleepopolis bed? I use a platform frame from Copenhagen Imports. It’s simple, but very sturdy and well made. Note: Take our mattress quiz if you’re starting your search for a new bed! – If you have an adjustable foundation, you will not need a boxspring. Adjustable foundations allow the mattress to shift height and angle, reducing stress on your back, internal organs, and breathing. One thing to note: Adjustable foundations cannot support most innerspring mattresses. Despite whether these frame types need a boxspring or not for support, you can add a boxspring to any of these bases (excluding the adjustable base). Some sleepers prefer the increased height that a boxspring provides or like a more traditional look.

Boxspring vs. Foundation: What’s the difference?

Sometimes, people use the term “boxspring” and other times it’s a “foundation.” So what’s the difference? Basically, in today’s market a boxspring and foundation are the same thing. Originally, boxsprings were constructed with actual springs contained inside of a wood frame (box). Modern manufacturers have found more efficient ways to create lightweight, supportive boxsprings without the springs — say hello to foundations. Example – Classic Brands instant foundation and the Zinus high profile smart box The words “boxspring” and “foundation” can usually be used interchangeably, assuming no springs are actually used. In the case where you skip the boxspring, your bed frame actually becomes your foundation since it offers the same support.

Can you put a mattress on the floor?

You certainly can. In many situations, there will be no significant negative effects. However, placing a mattress directly on the floor can result in the following: Reduced airflow – Since the mattress sits directly on the floor, it will not be able to expel air and breathe as easily as it could on a boxspring or platform bed. – Since the mattress sits directly on the floor, it will not be able to expel air and breathe as easily as it could on a boxspring or platform bed. Less hygienic – Everything that gets on the floor can now more easily get on your mattress. This includes dirt, dust, allergens, or even bed bugs or mites. – Everything that gets on the floor can now more easily get on your mattress. This includes dirt, dust, allergens, or even bed bugs or mites. More difficult to get back up – If you’re older or otherwise have trouble getting in and out of bed, having a bed on the floor can make getting in and out of bed more difficult. – If you’re older or otherwise have trouble getting in and out of bed, having a bed on the floor can make getting in and out of bed more difficult. Void your warranty – Some mattress warranties dictate that the mattress must be on a boxspring or platform bed. If you want to stay protected, be sure to double check the warranty terms. The biggest risk to placing the mattress on the floor is mold. If you live in a moist or humid environment, mold can be a serious issue and one that can ruin a mattress. To reduce the risk of mold, consider adding a mattress encasement to protect your investment.

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Boxspring Alternatives

If you aren’t a fan of the traditional boxspring, you may want to consider one of the following boxspring alternative options.

Low-profile foundation

Functionally, a low-profile boxspring will act exactly like a traditional boxspring; however, its height is usually about half that of a traditional boxspring. Example – Zinus 4″ low profile boxspring and the Classic Brands 4″ low profile boxspring This can allow you to still achieve the benefits of a normal boxspring, with a much sleeker design and style. It’s also a nice middle ground between low platform beds and traditional boxsprings.

Bunkie board

A Bunkie board is a thin sheet of a solid surface (commonly plywood) that sits between your mattress and your bed frame. It provides a solid foundation similar to a platform bed and eliminates the need for a boxspring.

Example – Signature Sleep steel bunkie board

Mattress on the floor

If you like the lower look and aren’t concerned about voiding your mattress warranty, placing the mattress on the floor is another option. You may want to get some type of a mat to place it on, as this will help to keep it a bit cleaner.

Summary

Overall, there are many cases where you can forgo the boxspring and place your mattress directly on the foundation. Mattress warranties can be voided if you don’t take note of what each mattress company’s policies are. Skipping the boxspring altogether or going with a low-profile, thinner alternative can give your bed a sleeker design without sacrificing any support that a traditional boxspring would provide.

FAQs

What does a boxspring do? There are two main functions of a boxspring for a mattress. The first is providing a solid foundation that can help increase the life of your mattress. The second is for adding height which can make it easier to get in and out of bed. If a mattress does not need a boxspring can I put it on the floor? For many mattresses, it is completely fine to put the mattress on the floor. There are some things to consider when doing this though such as decreased airflow for your mattress, hygiene issues such as mold and dust, difficulty in getting in and out of bed, and it could void the warranty on the mattress as well. Are there alternatives to traditional boxsprings? Yes, there are some great alternatives to a traditional boxspring. A low profile foundation can provide the support needed while only being about half as high as a traditional boxspring. Another option is a bunkie board which is generally a piece of plywood that acts as a foundation. How do I know if I need a boxspring for my mattress? Be sure to check the warranty that came with the mattress. This will specify if one is required under warranty or what the manufacturer recommends is best.

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