How To Speed Up Mattress Off Gassing? 3 Best Ways

If you’re curious how to speed up mattress off gassing, we have three techniques to share! Remember that mattresses like memory foam must finish off gassing to dissipate the chemical smell. However, there are some practices you can do to hasten this process so that you can sleep on your bed faster.

How long should you wait? The ideal time to wait before using your new memory foam bed is 24 hours. This time is also enough for the material to expand so that you can get the bed’s comfortable and supportive feel. 

How To Speed Up Mattress Off Gassing


How To Speed Up Off Gassing Of New Mattress


Let it be

The first way to hasten your new mattress’s off gassing is to let it be. Understandably, new bed owners get worried about the smell of the mattress upon opening. However, the chemical compounds during off gassing are not enough to cause health issues, so it’s best to just let your new bed air out for several days. 

Once your new bed arrived, take it out of the box, and all of its packing covers immediately. Now that you have your bare mattress, you can simply lay it on your foundation or floor inside a ventilated room. It’s also better to have a fan inside to circulate air to hasten the off-gassing in less than three days. 

Do note that it’s better to let a new mattress finish ventilating for at least the first three days. While the odor is not harmful, some people might be too sensitive to the chemicals and get irritated. The good news is doing this initial practice will allow you to use your mattress quicker without the chemical smell. 


Bring it out

If your mattress has been taking over three days and the chemical smell still hasn’t entirely dissipated, you can allow the sun to help you. Bring your bed outside and let the sun freshen it for you. Exposing it to the sun’s warmth should also sanitize your new mattress without needing to spray any artificial cleaners on the surface.  

Another quick tip is to give your mattress some bounces to unlock the remaining gasses and let them dissipate. However, you don’t have to expose the mattress to sunlight for an extended period nor jump on it for more than 10 minutes. These practices are best done in moderation to avoid deforming the bed’s structure. 


Baking soda

The final technique to eliminate the chemical odor of your new foam bed is with the common household item, baking soda. You are probably familiar with how baking soda helps freshen mattresses, including those that smell musty. However, it will also work in hastening your bed’s off gassing. 

To start, sprinkle baking soda all over the mattress surface and let it sit for an hour. Then, vacuum the powder off and repeat the process on the other side. You can also extend the baking soda’s duration on your bed and bring it outdoors to the sun after you vacuum the powder off. 


How Do I Stop My Mattress From Passing Gas?

The truth is you cannot stop your mattress from off-gassing as this is normal, especially for foam materials. Instead, you must do the three practices above to hasten the process before using the bed. We will also talk below about some techniques that you can do to neutralize the smell. 

If you want to feel at ease with the product you’re using, try checking if it has a VOC certification or if the brand adhered to the standards regarding foam beds. Some examples are CertiPUR-US, Standard 100 by OEKO-TEX, and Greenguard Gold. Having a certificate should ensure that your bed is safe from harmful emissions. 


How Long Does It Take For New Mattress Smell To Go Away?

You can check your mattress label for the expected duration until it finishes off gassing. To give you an idea, beds with memory foam and polyurethane typically finish off gassing after 24 hours, but some multilayer ones can take several days. Some brands even take two weeks, but you can use the bed as long as the smell doesn’t irritate you. 


How Do You Neutralize The Smell Of A Mattress?

If you don’t want to wait for weeks, you can neutralize your new mattress’s smell using an air purifier in the room. Remember that purifiers, especially those that use HEPA filters, remove pungent odors by trapping them. You can also cover the mattress itself to keep your nose happy. 

However, using a plastic mattress cover to trap the smell is only a short-term solution. Remember that the best way to hasten off gassing is to let the bed breathe. Cover your mattress only when you need to sleep on it, and the chemical smell is too distracting. 



Foam beds typically have a chemical odor upon arrival. Therefore, it will be helpful to know how to speed up mattress off gassing so that you can sleep on your new bed as soon as possible. First, you want to let the mattress ventilate thoroughly and then expose it to the sun.

You can also sprinkle some baking soda on the surface and let it sit for an hour before vacuuming it off. Remember that off gassing is not detrimental to the health, but you can feel more at ease knowing if your bed is certified safe.