DreamCloud mattresses are not toxic in any meaningful sense for most people. Like nearly all foam-containing mattresses, they do release some chemical compounds when new, but the levels are low and temporary. The foams used in DreamCloud mattresses are CertiPUR-US certified, meaning they’re manufactured without formaldehyde, heavy metals, phthalates regulated by the Consumer Product Safety Commission, or ozone-depleting chemicals. That said, “not toxic” and “completely chemical-free” are different things, and it’s worth understanding what’s actually in the mattress and what happens when you first unbox it.
What’s Inside a DreamCloud Mattress
DreamCloud is a hybrid mattress, which means it combines foam layers with an innerspring coil system. The top layer is a stretchable fabric cover quilted with fiber and about one inch of gel-infused memory foam sewn directly into it. Below that sits an additional inch of polyfoam that acts as a transition layer. The main support comes from roughly eight inches of individually wrapped steel coils, and the base is a final one-inch layer of high-density polyfoam.
The foam layers are where any chemical concerns come into play. Polyfoam and memory foam are both synthetic materials made from polyurethane, and they’re produced using a range of chemical compounds. Steel coils, by contrast, don’t off-gas or raise the same concerns. Because DreamCloud uses relatively thin foam layers compared to an all-foam mattress, the total amount of synthetic material in contact with your body is smaller.
What CertiPUR-US Certification Covers
DreamCloud’s foams carry CertiPUR-US certification, which is the most common safety standard in the U.S. mattress industry. Certified foams must meet these criteria:
- No formaldehyde used in production
- No regulated phthalates (chemicals sometimes used as plasticizers)
- No mercury, lead, or other heavy metals
- Low VOC emissions, capped at less than 0.5 parts per million
- Screened for flame retardants classified as carcinogens, mutagens, or reproductive toxins
One important limitation: CertiPUR-US only covers the polyurethane foam components. It doesn’t test or certify the fabric cover, adhesives, or any other non-foam materials in the mattress. So while the foam layers pass a meaningful safety screen, the certification doesn’t account for every single material in the product.
Off-Gassing: The “New Mattress Smell”
The chemical smell you notice when unboxing a new DreamCloud is called off-gassing. It comes from volatile organic compounds (VOCs), which are byproducts of foam manufacturing that vaporize at room temperature. This is normal for any mattress containing polyfoam or memory foam and isn’t unique to DreamCloud.
The strongest odors typically dissipate within a few hours of unpacking. Trace smells can linger for several days to a few weeks, especially with synthetic foam. Hybrid mattresses like DreamCloud generally off-gas less than all-foam models because they contain less synthetic material overall and the coil system allows more airflow through the mattress.
At the concentrations released by a certified mattress, VOCs are unlikely to cause health problems for most people. In higher concentrations, though, VOCs can cause eye and respiratory irritation, headaches, dizziness, nausea, and allergic skin reactions. People with asthma, chemical sensitivities, or allergies may be more reactive to even low-level off-gassing.
How to Minimize Exposure
If you’re sensitive to chemical odors or just want to be cautious, a few simple steps can reduce your VOC exposure when your new mattress arrives. Unbox it in a well-ventilated room with windows open. If possible, let it air out for 24 to 48 hours before sleeping on it. Running a fan or opening a second window to create cross-ventilation speeds up the process considerably.
Some people let their mattress off-gas in a spare room or garage for a day or two before moving it to the bedroom. This isn’t strictly necessary for safety, but it eliminates the smell issue entirely for anyone bothered by it. By the time the initial odor fades, the vast majority of measurable VOC emissions have already occurred.
Who Should Be More Cautious
For the average adult, a CertiPUR-US certified hybrid mattress poses no established health risk. The people who may want to think more carefully include those with diagnosed chemical sensitivities, severe asthma, or a history of allergic reactions to synthetic materials. Parents shopping for young children sometimes prefer mattresses with additional certifications like GREENGUARD Gold, which tests the finished product (not just individual materials) for total chemical emissions in a simulated room environment.
If you’ve reacted to foam products in the past, the issue is more likely related to sensitivity than toxicity. The distinction matters: a product can be safe by regulatory standards and still trigger symptoms in someone whose body is unusually reactive to low-level chemical exposure. In that case, mattresses built with natural latex or organic cotton and wool tend to produce far less off-gassing than any polyurethane-based option.