California King Mattress Topper

Blue Foam (2.5 lbs) is a high-density memory foam offering long-lasting support, while White Poly Foam (1.5 lbs) is a more affordable option with balanced firmness. 

Blue Foam (High-Density Memory Foam – 2.5 lbs per cubic foot):

Designed for superior durability with minimal height loss.
Retains firmness longer, making it ideal for high-quality mattresses and seating.
Provides medium compression support for a balance of comfort and resilience.
Typically more expensive due to its high density and performance.

White Poly Foam (Regular Foam – 1.5 lbs per cubic foot):
Exceeds standard foam durability, offering enhanced support at a lower price.
Provides balanced firmness, making it great for furniture and bedding applications.
A cost-effective solution with solid comfort and performance.

Choose 2 inches for light cushioning and 3 inches for deeper pressure relief.

A 2-inch topper is best for enhancing comfort while maintaining mattress firmness. Ideal for mattresses that are still in good shape but need extra cushioning.
A 3-inch topper offers deeper contouring and pressure relief, perfect for firmer mattresses or sleepers with joint and back pain.

Simply place the topper on your mattress and cover it with a Bed sheet.

Our foam mattress toppers are designed for easy use. Lay the topper directly on top of your existing mattress, then cover both with a fitted sheet for a secure and comfortable sleep surface. This setup prevents shifting while ensuring a seamless fit.

Yes, we offer custom-cut mattress toppers in any size or shape.

 While we provide mattress toppers in standard North American sizes, we can custom-cut foam to fit unique mattress sizes, RV beds, antique bed frames, and irregularly shaped sleeping surfaces. Contact us with your dimensions for a custom solution.

No, our mattress toppers do not include a cover.

Our foam mattress toppers are sold without covers. We recommend using a fitted sheet to keep the topper in place and protect it from dust and wear. If additional protection is needed, consider using a breathable, washable mattress protector.

It’s the weight of the foam and affects how long it lasts.

Density, in foam terminology, refers to the weight of the foam. Higher density foams will be more resilient and durable than lower density foams. Two foams may feel similar if they have the same firmness (aka compression or ILD), but the higher density, or heavier foam, will last longer before sagging.

Usually not—most foams bounce back just fine.

No, compressing most foams does not cause damage. Foams are typically designed to withstand compression and regain their original shape once released. However, the duration of compression matters—prolonged compression beyond a certain time may affect some foams, depending on their type and quality. Just open up the package shortly after receiving it!

Yes, all our foams are CertiPUR-US certified and lab-tested for safety.

At Foamite, all our flexible polyurethane foams are CertiPUR-US certified, meaning they’re free of ozone depleters, PBDEs, TDCPP, TCEP flame retardants, mercury, lead, heavy metals, formaldehyde, and regulated phthalates. They emit low VOCs (under 0.5 ppm) for better indoor air quality and are lab-tested for safety and durability, ensuring top-quality foam for bedding and furniture.

It depends on how you plan to use the foam.

It depends on your use case. Density, measured by weight, determines durability. For heavy use, like a daily mattress or cushion, choose a higher-density foam; Koosh Natural and Preserve are great for longevity. If you’re on a budget, lower-density foam costs less but wears out faster. Firmness is a separate factor, about feel rather than durability. It depends on thickness, with thicker foam feeling firmer, as well as your preference and body weight. Heavier people might need more thickness to avoid bottoming out, while lighter folks could opt for softer foam. For more information visit our Foam Grades page.