Your new memory foam pillow contains up to 61 different chemical compounds, many of which are released through a process called off-gassing. While you’re probably familiar with that “new pillow smell,” you might not realize it’s actually a complex mixture of polyurethane, formaldehyde, and other volatile organic compounds (VOCs) escaping into the air. Understanding what causes this chemical odor – and whether it poses any health risks – will help you decide how to handle your fresh bedding.
Understanding Memory Foam Off-Gassing
When you first unpack your new memory foam pillow, you’ll likely notice a distinct chemical smell that’s commonly known as “off-gassing.” This natural process occurs as volatile organic compounds (VOCs) release from the newly manufactured foam into the surrounding air.
The memory foam composition includes polyurethane, polyols, and various chemical additives that contribute to the initial odor. While these compounds aren’t typically harmful, they can be unpleasant during the first few days of use. For effective odor mitigation, you’ll want to:
- Let your pillow air out in a well-ventilated room for 24-48 hours
- Place it near an open window or fan
- Avoid covering the pillow while it’s releasing VOCs
- Consider using a pillowcase only after the strongest odors have dissipated
Common Chemicals Found in New Memory Foam
While memory foam pillows provide exceptional comfort, they contain several key chemical compounds that contribute to their unique properties and initial odor.
Your new pillow’s main components include:
- Polyurethane – The primary memory foam material
- Formaldehyde – Used as a binding agent
- Benzene – A chemical reaction byproduct
- Methylene chloride – Added for flexibility
- VOCs (Volatile Organic Compounds) – Released during manufacturing
Dr. Sarah Chen, materials scientist, explains: “These chemical compounds are essential for creating memory foam’s pressure-sensitive properties, but they’re also responsible for that new pillow smell.”
You’ll find higher concentrations of these chemicals in:
- Dense foam cores
- Flame-retardant layers
- Adhesive bonding areas
- Synthetic foam covers
Most of these compounds will dissipate within 3-7 days through proper ventilation.
How Long Will the Smell Last?
Depending on your pillow’s quality and ventilation conditions, you can expect that new memory foam smell to last anywhere from 3 days to 4 weeks.
To speed up the off-gassing process and eliminate odors faster, proper pillow care is essential. Start by letting your pillow air out in a well-ventilated room for 24-48 hours before first use. “Direct sunlight and fresh air are your best allies in reducing chemical odors,” says sleep expert Dr. Sarah Chen.
You can also try these methods:
- Place your pillow near an open window
- Use a fan to increase air circulation
- Remove the pillowcase for better ventilation
- Sprinkle baking soda on the surface, let sit for 2-3 hours, then vacuum
- Consider using a dehumidifier in the room
Safety Concerns and Health Considerations
Although most memory foam pillows are considered safe, the chemical odors from off-gassing can cause mild discomfort in sensitive individuals. “The volatile organic compounds (VOCs) released during off-gassing may trigger headaches, nausea, or respiratory irritation in some people,” explains Dr. Sarah Chen, toxicologist.
To minimize potential health risks from chemical exposure, you can:
- Air out your pillow in a well-ventilated room for 24-72 hours
- Use a protective pillowcase barrier
- Watch for symptoms like dizziness or throat irritation
If you’re particularly sensitive to chemicals or have respiratory conditions, consider:
- Choosing organic or low-VOC certified pillows
- Consulting your doctor before use
- Testing the pillow briefly before sleeping on it overnight
- Returning the pillow if symptoms persist
Tips to Speed Up the Off-Gassing Process
For those enthusiastic to speed up their pillow’s off-gassing process, several proven methods can reduce the chemical smell in just a few days. “The key is maximizing air circulation and environmental factors that help VOCs dissipate faster,” says home ventilation expert Mark Thompson.
Try these effective off-gassing reduction techniques:
- Place your pillow outdoors in a shaded area for 24-48 hours
- Set up a fan directly facing the pillow for enhanced pillow ventilation
- Keep your bedroom window open while the pillow’s inside
- Use your dryer’s “air only” setting for 20-minute intervals
- Sprinkle baking soda on both sides, let sit for 8 hours, then vacuum
“Direct sunlight can break down memory foam, so stick to well-ventilated, shaded spots during the airing-out process,” Thompson advises.
Frequently Asked Questions
Can I Wash My Memory Foam Pillow While It Still Smells?
You shouldn’t wash memory foam while it’s off-gassing. Instead, try these odor removal techniques: air it outside, sprinkle baking soda, or use natural deodorizers to speed up the cleaning process.
Will the Smell Transfer to My Pillowcase or Bedding?
Like a sponge soaking up water, your pillowcase will temporarily absorb some of the odor. Don’t worry though – you won’t notice much transfer, and regular washing of your bedding prevents odor absorption.
Does Storing the Pillow in Different Temperatures Affect the Smell?
Temperature fluctuations won’t considerably affect your pillow’s odor, but extreme heat can increase off-gassing. You’ll notice better odor absorption if you store it in a cool, well-ventilated space with consistent temperatures.
Why Does My Old Memory Foam Pillow Suddenly Smell Again?
Like a sponge soaking up water, your old memory foam pillow’s been absorbing sweat, oils, and moisture over time. Memory foam degradation and odor absorption can make unpleasant smells return without regular cleaning.
Can I Return My Pillow if I Can’t Tolerate the Smell?
You can usually return your pillow within the store’s pillow return policy timeframe. Keep your receipt and original packaging. Many retailers offer memory foam exchanges if you’re unsatisfied with the product.
