Sinomax - FAQ

Sinomax USA® has been in business in the U.S. market since 2000; however, we have been designing and manufacturing consumer goods since 1986.

Memory foam mattress toppers, mattresses, pillows, sleep and seating accessories, as well as leather seating products.

Our products are designed in the United States and made by our factories in Shanghai and Dongguan, China.

Sinomax® products are available under the ComforZen™ brand or under the retail store’s private label. Our products can be purchased at CVS, Ross, Sam’s Club, Target, TJ MAXX, and Walmart.

With a memory foam mattress topper, you add an extra layer of body-hugging foam to your mattress. It actually relieves the pressure on your body, improves sleeping posture and allows your muscles to relax so you sleep more restfully.

If you find that your purchased product is defective, please allow us the opportunity to correct it. Our warranty covers manufacturer defects only, not wear and tear from time and usage, or products damaged as a result of exposure to non-recommended environments. All claims are subject to review.

As long as the mattress topper is large enough, you can use a serrated-edge cutting tool to trim any Sinomax® mattress topper to fit virtually any bed. This includes daybeds, camper and boat mattresses — even cots.

Sinomax® makes mattress toppers that can fit over any standard-sized twin, full, queen or king mattress, box spring or platform bed.

Memory foam technology was developed by NASA scientists to react to temperature. If it’s left exposed to extreme heat, the foam could soften and become less comfortable.

Typically, you can place your memory foam mattress topper on top of your mattress and it will flatten almost fully within about an hour. After that, you can sleep on it, but it may take up to 24 hours for any slight chemical odor to disperse.

Definitely. You may use your own cover, but plastic waterproof covers may affect airflow and, therefore, comfort.

You may use waterproof covers, however, the cover provided allows more breathability for the memory foam and may be more comfortable to sleep on.

Unfortunately, Sinomax® does not sell covers separately, either through our retailers or directly to consumers. We recommend using either a mattress cover or pad sold by the retailers who carry Sinomax mattress toppers. You should be able to find a deep cover and pad that fits most standard-sized mattresses — even with the additional thickness of the mattress topper.

We don’t recommend it. Since body heat activates the memory foam and helps it contour around your body’s shape, we do not recommend using electric blankets, heating pads or electric mattress pads with your Sinomax® memory foam product. The additional heat can soften the foam and affect its comfort.  

Should you decide to use a pad for short period of time to warm the bed, be advised to check all electrical blankets for potentially hazardous loose wires.

For maximum comfort, we recommend you rotate your Sinomax® mattress topper just once a month.

Some retailers don’t carry all sizes of mattress toppers. Call your local retailer to confirm availability.

Testing for memory foam is easy. Firmly press the palm of your hand on the topper and, if you leave a hand print indention when you remove your hand, you know it’s memory foam. Some thicker memory foam toppers are made with memory foam on one side and regular foam on the other. To get the most comfort and benefit from your mattress topper, place the topper with the memory foam side up.

Yes. Memory foam mattress toppers are made to be stored on a flat surface like a bed that’s not being used or underneath. Be sure not to fold it because it may tear.

As with any sleeping product, when exposed directly with flames, it will burn.  Be assured, however, that we meet the highest standards for flame retardancy, as determined by the California Technical Bulletin 117 test. This fire code information is available upon request and is accepted by most nursing homes across the country.

When you press down on the memory foam side, you’ll notice an impression of your hand — this is the side that goes up. Next, slip the cover over the foam and be sure that the zipper closure is on the bottom, or the non-memory foam side. When you’re finished, the zipper should lie on top of the mattress.

Memory foam, sometimes referred to as visco elastic polyurethane foam, is a combination of polyurethane and other chemicals that increase its viscosity and density. Memory foam reacts to body heat depending upon the foam’s density — the higher the density, the more it molds to the shape of your body.

Density is a lot like thread counts on sheets — the higher the thread count, the more comfortable the sheets are. The higher density memory foam used in Sinomax® products uses more material, which helps it last longer and stay comfortable longer.

Every product made of memory foam has some chemical odor, but it typically dissipates within a day or two if it’s allowed to air out.

Do not apply water directly to your memory foam; instead, simply spot clean with a damp cloth.

Most people prefer the comfort of a memory foam mattress or topper, Memory foam was designed to interact with body heat to create contoured support and comfort. It absorbs heat and becomes firmer in cooler temperatures, but there is no clinical data that proves that memory foam makes your body temperature rise while sleeping on it.

All Sinomax® products are hypoallergenic but on rare occasions it is possible to have a polyurethane allergy.  If you are allergy sensitive, we recommend washing the cover first to help prevent a reaction.

Unless your mattress, mattress topper or pillow becomes wet or soiled, it will not mold. However, in the event this does happen, we strongly suggest that you purchase a replacement to avoid mold forming.

Leave the cover on, and carefully roll the topper to help prevent it from tearing during your move.

This voluntary testing, analysis and certification program was developed by members of the global foam industry in response to an increase in substandard imported foams. CertiPUR-US® tests for durability, content and indoor emissions. CertiPUR-US® is an extension of the European CertiPUR® program developed in 2002 by EUROPUR, the association of European flexible polyurethane foam block manufacturers. Products, such as upholstered furniture and mattresses, that carry the CertiPUR-US® seal contain flexible polyurethane foams that have been tested and certified by an independent laboratory to meet specific criteria for physical performance, indoor emissions and environmental stewardship.

Today’s consumer cares about what’s inside the products they buy -– and that trend is growing. Tainted toothpaste. Unsafe toys. Deadly dog food. Are foam products next? News coverage about contaminated consumer products has put the public on high alert about what they buy for themselves and their families. When there is media coverage and consumer concern about “toxic” furniture or “hazardous” bedding, the CertiPUR-US® seal will enable consumers to make informed choices about the foam in the products they choose.

The CertiPUR-US® certification is based upon standardized chemical analysis, emissions evaluation, environmental guidelines, physical performance testing, pledges of compliance and random compliance verification.

Each CertiPUR-US® registration covers only a specific class of polyether-based flexible polyurethane foam manufactured with the same raw materials. The categories are:

• Conventional polyether foam
• Conventional FR polyether foam (sharing the same fire retardant package)
• Super-soft (low density/low index) conventional foam (≤15 lbs. IFD and ≤1.5 pcf )
• High resilience foam
• Visco elastic foam
• Other foams to be reviewed on a case-by-case basis by a CertiPUR-US® administrator.