What Is a Casper Mattress Made Of? Materials, Layers, and What They Mean for You

If you’re asking “What Is a Casper Mattress Made Of”, you’re usually trying to find out what’s inside the bed you’re sleeping on (or thinking about buying): foam, springs, chemicals, covers, and certifications. This FAQ walks through the typical materials used in popular foam and hybrid models from this brand and what they might mean for comfort and feel.

What Is a Casper Mattress Made Of at a Basic Level?

Most mattresses from this brand are built from a stack of foam layers, sometimes combined with pocketed coils, all wrapped in a textile cover.

In general, they use:

  • Polyurethane foam (often called polyfoam)
  • Memory foam or similar contouring foam
  • Support foam in the base
  • Pocketed steel coils in hybrid models
  • Polyester-rich knit covers, sometimes blended with other fibers

The exact mix and thickness of each layer can vary between specific models, but these are the core building blocks.

What Kinds of Foam Are Used Inside?

Comfort and transition foams

Near the top of the mattress, you’ll usually find:

  • Softer polyfoam or proprietary comfort foam

    • Designed to feel more plush and responsive
    • Often formulated to feel slightly bouncy rather than slow and sinking

  • Memory foam–type layers (in some models)

    • Used for pressure relief and contouring
    • Typically placed underneath the very top layer rather than directly at the surface

These comfort layers are there to balance cushioning, contouring, and ease of movement.

Support and base foams

Deeper in the mattress, you’ll typically see:

  • High-density polyfoam

    • Acts as the main support core in all-foam models
    • Adds firmness, structure, and edge stability

  • Zoned foam sections (in certain designs)

    • The foam may be cut or formulated in zones to feel slightly firmer under the hips and softer under the shoulders
    • Aimed at helping with overall alignment and comfort

These denser foams are what keep you from sinking too far into the bed.

What About Hybrid Casper Mattresses?

Some models combine foams with steel coils. In these:

  • The top layers are similar: comfort and transition foams.
  • The middle core contains individually wrapped (pocketed) coils.
    • Each coil moves more independently than a continuous wire unit.
    • This structure commonly provides more bounce and airflow than all-foam designs.
  • Beneath the coils, there is often a thin foam base layer to support and stabilize the spring unit.

Hybrid versions are still foam-forward, but the coils change how the mattress responds to movement and temperature.

What Is the Cover Made Of?

Most covers from this brand are made from a polyester-based knit fabric, sometimes blended with other synthetic or natural fibers. Common traits include:

  • Stretchy and flexible to move with the foam underneath
  • Usually soft to the touch
  • Designed to allow some airflow through the surface

Some models may incorporate additional features like thicker quilting, different weaves, or added details around the edges for grip and structure.

Are There Chemicals or Flame Retardants Inside?

All mattresses sold in many regions need to meet flammability standards. This brand, like most modern manufacturers, typically aims to:

  • Avoid added chemical flame retardant sprays and instead
  • Use barrier fabrics or inherently flame-resistant materials (often within the cover or just below it) to pass the required tests

Foam itself is a petroleum-derived product and may contain various additives as part of the manufacturing process. Many consumers look for:

  • Certifications that focus on low emissions and indoor air quality
  • Materials that are tested to be below certain thresholds for specific compounds

If you are sensitive to odors or particular chemicals, it can be helpful to:

  • Look for current certification details on the official product information
  • Air out a new mattress in a well-ventilated room for a short period after opening

How Do the Materials Affect Firmness and Feel?

The answer to “What Is a Casper Mattress Made Of” is closely tied to how the mattress feels:

  • Softer top foams → more cushioning and a plush surface
  • Denser foams → more support and durability
  • Zoned layers → subtle differences in firmness along the length of the bed
  • Coils vs. all-foam → coils generally create more bounce and airflow, all-foam tends to offer a more hugging, uniform feel

Different models from this brand use these materials in different proportions, which is why one version can feel firmer, softer, or more responsive than another.

Is a Casper Mattress Considered “Natural” or “Organic”?

Typical mattresses from this brand are primarily synthetic, using:

  • Polyurethane-based foams
  • Synthetic or blended fabric covers
  • Steel coils in hybrids

They are not usually marketed as fully organic or all-natural. Some models may include specific natural elements (such as certain fibers), but the core structure is largely made from standard mattress industry materials.

If you are looking for strictly natural or organic construction, it is important to read each model’s material breakdown carefully and compare it to your personal preferences.

✔️ Quick Mattress Takeaways

Key points consumers should understand about What Is a Casper Mattress Made Of

  • Core materials: Primarily polyurethane foams, with memory-foam-like layers in some models and pocketed steel coils in hybrids.
  • Comfort layers: Softer foams near the top for pressure relief and cushioning, sometimes with zoned construction for different body areas.
  • Support system:High-density support foam in all-foam models; coil units plus a foam base in hybrids.
  • Cover: Usually a polyester-based knit fabric designed to be soft, stretchy, and breathable.
  • Flame resistance: Uses barrier materials to meet safety standards, instead of relying on traditional chemical flame-retardant sprays.
  • Overall profile: A modern, foam-forward construction with options that adjust the mix of foams and coils to change firmness and feel.

Understanding what a Casper mattress is made of helps you match its materials and construction to what you personally value in a bed: contouring, bounce, temperature, and overall sleeping experience.