Casper One Foam Mattress


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Why You’ll Love It

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  • adjustable friendly

    Upgrade to better sleep— elevate your support and discover the perfect mattress with adjustable bed base compatibility.

  • bed in a box

    Where comfort meets convenience and gets delivered to your doorstep— who says you can’t have it all?

  • memory foam

    With a targeted response to body weight, contouring quality, and hypoallergenic design— brighter mornings await.


Responsive yet supportive with an ideal medium-firm feel, the Casper One Foam Mattress is perfect for those who loved The Casper and Original models. Body-cradling and cozy with a four-layer design, this all foam mattress features an airy, buttery-soft knit fabric cover above Breathe Flex Foam engineered to relieve pressure and maximize airflow with an open-cell construction. Along with the durable Casper Core foam base for resilience and stabilization, a layer of Align Memory Foam contours and adapts, allowing you to stay comforted throughout the night. 

  • Comfort: Medium Firm
  • Cozy Cover: Buttery-soft and airy knit blend fabric enhances comfort and coziness at the surface.
  • Breathe Flex Foam (Comfort Layer): A responsive, breathable, open-cell polyurethane foam layer provides the perfect bounce and allows higher airflow for soothing comfort.
  • Align Memory Foam (Comfort Layer): Memory foam layer relieves pressure points and cradles your body to help you stay asleep.
  • Casper Core (Support Layer): Firm and durable polyurethane foam base delivers long-lasting support while preventing sinking and sagging.
  • All CertiPUR-US® certified foams made without ozone-depleting chemicals and are regulated by the Consumer Product Safety Commission Low VOC (Volatile Organic Compound) emissions for indoor air quality (less than 0.5 parts per million).
  • Adjustable friendly foam mattress
  • Twin Size Dimensions: 38" W x 75" L x 11” H
  • Twin XL Size Dimensions: 38" W x 80" L x 11” H
  • Full Size Dimensions: 53" W x 75" L x 11" H
  • Queen Size Dimensions: 60" W x 80" L x 11" H
  • King Size Dimensions: 76" W x 80" L x 11" H
  • Cali King Size Dimensions: 72" W x 84" L x 11" H
  • Properly guard your mattress against dirt, spills, and more by topping it with Cariloha’s Bamboo Waterproof Mattress Protector
  • Warranty: 10 year limited
  • Imported
We have purchased all of our bedding for the last 30 years from City Mattress and your products and services have been consistently excellent. Thank you!!! Newton B. Green II