How Long to Air Out New Mattress? A Comprehensive Guide

Most new mattresses require 24 to 72 hours to fully air out and off-gas, allowing volatile organic compounds (VOCs) to dissipate. The duration depends on the mattress type, materials, and your sensitivity to smells.

The Importance of Airing Out Your New Mattress

Bringing home a new mattress is exciting, but it’s not quite ready for immediate use. That distinctive “new mattress smell” is actually off-gassing, the release of volatile organic compounds (VOCs) from the materials used in manufacturing. While often harmless, these VOCs can cause temporary irritation or discomfort for some individuals.

What is Off-Gassing?

Off-gassing is a common process with many new products, including mattresses, furniture, and even cars. It occurs when chemicals used during manufacturing evaporate at room temperature. These chemicals, including VOCs, are often used in foams, adhesives, and flame retardants within the mattress.

Why Airing Out Matters

• Reduces Odor: The primary benefit is the reduction of the initial strong odor associated with new mattresses. This can improve sleep quality and comfort, especially for those with sensitive noses.
• Minimizes Irritation: While most VOCs are present in low concentrations, they can still cause irritation, such as headaches, nausea, or respiratory issues, particularly in sensitive individuals. Airing out reduces the concentration of these compounds.
• Promotes Better Sleep: A less pungent and potentially less irritating environment contributes to a more comfortable and restful sleep experience from the very first night.

Factors Affecting Off-Gassing Time

The time required to properly air out your new mattress isn’t a fixed number. Several factors influence the duration:

Mattress Type

• Memory Foam: Memory foam mattresses, especially those with high-density foam, tend to off-gas more noticeably and for a longer duration.
• Latex: Natural latex mattresses typically off-gas less than synthetic or blended latex. However, even natural latex can have a slight rubbery smell initially.
• Hybrid: Hybrid mattresses, combining coils with foam layers, often fall somewhere in between, depending on the types and quantities of foam used.
• Innerspring: Traditional innerspring mattresses with minimal foam layers generally off-gas the least.

Materials Used

• CertiPUR-US Certified Foams: Mattresses using CertiPUR-US certified foams have undergone testing to ensure they meet strict emissions standards for VOCs. This usually means less off-gassing.
• Natural vs. Synthetic Materials: Mattresses made with natural materials like organic cotton, wool, and natural latex tend to off-gas less and release fewer potentially harmful VOCs compared to those made with synthetic materials.
• Flame Retardants: The type and quantity of flame retardants used can also influence off-gassing. Some flame retardants have a stronger odor than others.

Environmental Conditions

• Ventilation: Proper ventilation is crucial. A well-ventilated room with open windows and fans will significantly speed up the off-gassing process.
• Temperature: Warmer temperatures can accelerate the release of VOCs. However, excessively high temperatures are not recommended.
• Humidity: High humidity can slow down the off-gassing process.

How to Air Out Your New Mattress Effectively

Follow these steps to maximize the effectiveness of airing out your new mattress:

1. Unpack and Uncover: Remove all packaging materials immediately after delivery.
2. Place in a Well-Ventilated Room: Choose a room with good airflow. Open windows and doors, if possible.
3. Elevate the Mattress (Optional): Elevating the mattress, if possible, allows for better airflow around all sides.
4. Use Fans: Direct fans towards the mattress to circulate air and accelerate the dissipation of VOCs.
5. Avoid Covering: Do not cover the mattress with sheets or a mattress protector during the airing-out period.
6. Monitor the Odor: Regularly check the mattress for lingering odors. Continue airing it out until the smell significantly diminishes or disappears.

Frequently Asked Questions (FAQs)

1. Is off-gassing dangerous?

Most off-gassing is not considered dangerous, as the concentrations of VOCs are generally low. However, sensitive individuals may experience temporary irritation. If you experience severe symptoms, consult a medical professional.

2. What are VOCs?

Volatile organic compounds (VOCs) are chemicals that evaporate at room temperature. They are used in various manufacturing processes and can be found in many household products.

3. How can I tell if my mattress is off-gassing?

The most obvious sign is a distinct “new mattress smell,” which can range from a slightly chemical scent to a stronger, more pungent odor.

4. How long does the off-gassing smell last?

The duration varies depending on the mattress type and materials. It typically lasts from a few days to a few weeks. Most of the off-gassing occurs within the first 72 hours.

5. Are organic mattresses exempt from off-gassing?

While organic mattresses generally off-gas less, they may still have a slight odor due to the natural materials used. The off-gassing from organic mattresses is usually considered less harmful.

6. Can I sleep on my mattress while it’s off-gassing?

It’s generally recommended to air out your mattress before sleeping on it to minimize potential irritation. However, if you need to use it immediately, ensure the room is well-ventilated.

7. What if I’m particularly sensitive to smells?

If you’re sensitive to smells, opt for mattresses made with natural and certified materials. Consider airing out your mattress in a separate room for an extended period.

8. Does a mattress protector help with off-gassing?

A mattress protector will trap VOCs and prevent them from dissipating effectively. It’s best to air out the mattress without a protector initially.

9. Can I use a mattress topper to mask the smell?

Similar to a mattress protector, a topper will trap VOCs and hinder the off-gassing process. Wait until the off-gassing has subsided before adding a topper.

10. What can I do to speed up the off-gassing process?

Increasing ventilation by opening windows and using fans is the most effective way to speed up the process. Warmer temperatures can also help, but avoid extreme heat.

11. Is it normal for the smell to return after a few months?

The initial off-gassing smell should not return after a few months. If you notice a recurring odor, it may be due to other factors, such as moisture or mold.

12. What certifications should I look for when buying a mattress to minimize off-gassing?

Look for certifications such as CertiPUR-US, GOLS (Global Organic Latex Standard), and GOTS (Global Organic Textile Standard). These certifications indicate that the materials have been tested for harmful chemicals and VOC emissions.

Conclusion

Airing out your new mattress is a crucial step to ensure a comfortable and healthy sleep environment. While the time required varies, understanding the factors involved and following the recommended steps will help you minimize off-gassing and enjoy your new mattress to the fullest. By choosing mattresses with certifications like CertiPUR-US and prioritizing natural materials, you can further reduce the potential for VOC emissions and prioritize your well-being.