When you unwrap a new mattress, you may notice an odor that can be both surprising and concerning. This smell is often due to volatile organic compounds (VOCs), which are released through a process known as off-gassing. VOCs are emitted as gases from certain solid or liquid substances, which can include the materials used in manufacturing mattresses such as foams, adhesives, and flame retardants. While the scent can be unpleasant, it typically dissipates over time as the mattress airs out.
Understanding the Source of New Mattress Smells
Composition of Modern Mattresses
To understand why your new mattress smells, it’s important to start by looking at what modern mattresses are made of. Many mattresses, particularly those that come in a box, are made with memory foam, polyurethane foams, and other synthetic materials. During the manufacturing process, these materials often get treated with chemicals to give them certain properties, such as flame resistance or added support.
The Role of Volatile Organic Compounds (VOCs)
As touched upon earlier, these chemicals can emit VOCs. Some common VOCs include formaldehyde, benzene, and toluene. These aren’t just present in mattresses; they can be found throughout our homes in paint, cleaners, and other household items. However, because a mattress is a large item and we spend a significant amount of time in close proximity to it, the smell can be particularly noticeable when it’s new.
The Process of Off-Gassing
What Is Off-Gassing?
Off-gassing describes the release of VOCs into the air. It starts the moment you unwrap your mattress and can continue for days or even weeks after. The initial smell is usually the strongest and gradually fades over time.
What Factors Affect Off-Gassing?
The duration and intensity of off-gassing can vary based on several factors. These include the types of chemicals used, the room’s ventilation, ambient temperature, and humidity. A well-ventilated room with a moderate climate is likely to expedite the off-gassing process, whereas a poorly ventilated room may prolong it.
Health Concerns Related to VOCs
While most individuals will not experience severe effects from the VOCs emitted by a new mattress, there is a subset of the population, such as those with chemical sensitivities or respiratory issues, who may find the smell bothersome or even unhealthy. Potential short-term effects include headaches, irritation of the eyes, nose, and throat, and dizziness. However, most of these symptoms resolve as the off-gassing reduces.
Minimizing Exposure to VOCs
If you’re concerned about the potential impact of VOCs, there are steps you can take to reduce your exposure. Look for mattresses that have certifications like CertiPUR-US®, which indicates the foam has been tested for specific VOC emissions and content.
How to Speed Up the Off-Gassing Process
Ventilation Is Key
One of the most effective ways to mitigate the smell of a new mattress and expedite the off-gassing process is to increase ventilation. When you first unwrap your mattress, you should do so in a well-ventilated area, preferably with several windows open or with fans circulating air.
Let the Mattress Breathe
Before making your bed with sheets and bedding, let your mattress breathe. Leave it uncovered for as long as you can—ideally for the first few days after unpacking it, when off-gassing is at its peak.
Temperature and Humidity Control
Maintaining a moderate temperature and low humidity can also help to minimize VOC emission rates. If it’s an option, consider using an air conditioner or dehumidifier in the room where the new mattress is airing out.
Use of Baking Soda
Baking soda is known for its ability to neutralize odors. Sprinkling it over the surface of the mattress and letting it sit for a few hours before vacuuming it off can aid in absorbing unpleasant smells.
Cleaning and Fresh Air
In addition to baking soda, regular cleaning and exposing the mattress to fresh air by opening windows can both help with reducing off-gassing.
The Relationship Between Mattress Type and Smell
Memory Foam Mattresses
Memory foam is particularly known for having a noticeable off-gassing odor due to its high density and the chemicals involved in providing its viscoelastic properties.
Latex Mattresses
Natural latex mattresses generally have less of an odor compared to synthetic or blended latex mattresses. They may still have a distinct smell, which usually comes from the natural latex itself and is often considered less offensive.
Innerspring Mattresses
Innerspring mattresses may emit less of an odor since they contain fewer foam layers. However, they may still have some off-gassing from foam toppers or the fire-retardant materials used.
Top 5 Mattresses Recommended By GoodSleepHub.com
Mubulily Full Mattress,10 Inch Hybrid Mattress with Gel Memory Foam,Motion Isolation Individually Wrapped Pocket Coils Mattress,...
$187.99 (as of October 15, 2024 06:34 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Vesgantti Twin Mattress, 10 Inch Hybrid Twin Size Mattress in a Box, Single Bed Mattress with Memory Foam and Pocket Spring, Erg...
$259.99 (as of October 15, 2024 06:33 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Mubulily Queen Mattress,10 Inch Gel Memory Foam and Innerspring Hybrid Mattress in a Box with Individual Pocket Spring for Motio...
$205.99 (as of October 15, 2024 06:34 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)
Fyaslt Queen Size Mattress, 10 Inch Memory Foam Hybrid Mattress in a Box with Individual Pocket Spring for Motion Isolation & St...
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NEO SLEEP 5 Inch Twin Cooling Gel Memory Foam Mattress for Cool Sleep Medium Firm Pressure Relief CertiPUR-US Certified Mattress...
$79.98 (as of October 15, 2024 06:34 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Choosing a Low-Odor Mattress
If you’re in the market for a new mattress and want to avoid strong off-gassing odors, there are certain certifications and features to look out for that can indicate a product has lower VOC emissions.
Green Certifications
Look for mattresses that hold certifications like GREENGUARD Gold or OEKO-TEX Standard 100, as these indicate the product has been tested for low chemical emissions.
Organic Materials
Mattresses made with organic materials, such as organic cotton and natural latex, are less likely to have the same level of odors associated with synthetic materials. They also come with the added benefit of being produced in an environmentally friendly manner.
Transparency from Manufacturers
Manufacturers who disclose the materials used and are transparent about their manufacturing processes are more likely to produce mattresses with lower chemical odors and emissions.
When to Be Concerned About Your New Mattress Smell
While some odor from a new mattress is normal, there are circumstances under which you should be more cautious. If the smell does not dissipate after several weeks, or if anyone sleeping on the mattress experiences severe allergic reactions or health issues, it might be time to consider contacting the manufacturer or looking into return policies.
Persistent Odors
A smell that doesn’t go away after a reasonable off-gassing period could indicate that the mattress is emitting VOCs at higher concentrations or that there might be an issue with the quality of the mattress.
Allergic Reactions or Health Issues
If any respiratory issues, skin reactions, or other health problems arise and seem correlated with the new mattress, it is advisable to stop using the product and consult a healthcare professional.
Finishing Thoughts
Unwrapping a new mattress can be an exciting experience, marred only by the unexpected and often unpleasant smell that can accompany it. Understanding that this odor is typically the result of off-gassing of VOCs from the materials within the mattress can ease concerns. By ensuring proper ventilation, letting your mattress air out, and choosing mattresses with lower VOC emissions, you can significantly reduce the off-gassing smell and make your sleep environment more pleasant. Remember that while off-gassing is a normal part of the mattress “breaking-in” process, any persistent smell or associated health issues should be taken seriously, and further action, such as contacting the manufacturer, should be taken to ensure your well-being. With a little patience and care, your new mattress will soon be ready to provide you with a comfortable and odor-free night’s sleep.
