5 Reasons Why Foam Is More Interesting Than You Think

By Katie Szymanski  |  Mar 20, 2017
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Our award-winning engineering team spent 3,240 hours testing 100+ formulations of foam and developing 108 prototypes before landing on the Casper’s universally comfortable sleep surface. Our research led us to discover an optimal design that would cater to the vast majority of sleepers — regardless of sleeping positions, body types, or firmness needs. The reason Casper is able to ship a mattress straight to your door is the same reason why it’s outrageously comfortable.

So, how does a California king-sized bed fit in a box and still sleep comfortably? The proof is in the foam.

1. Foam is made up of millions of microscopic boxes. Each cell contains “struts,” which offer support, and “windows,” the spaces between the struts. When you compress the foam together, you’re pushing out air inside the windows and allowing the cells to become compact and rolled up. Voilà!

2. Foam loves fresh air. The unboxing magic happens once you remove the plastic covering holding it together. As this is undone, the polymeric structure of the mattress wants to return to its original shape. It draws in air from the room around it, and will be back to its full size in no time.

3. Foam provides a great support system. The molecular composition of Casper is perfect for weight distribution. Instead of feeling the pressure of a spring coil, foam’s cellular structure creates nearly infinite contact points for your body.

4. Foam is made to last. Denser foams have longer lifespans. Unlike springs, it doesn’t break down over time. We use a dense polyurethane foam at the base so that the top comfort layers keep their first night’s feel for thousands of nights to come.

5. Foam has a unique function at each of its layers. As you lie on your mattress, the weight of your body collapses into the breathable comfort layer and pushes air out of the cells as the more supportive base foams begin to engage. 

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