While Casper outsources some of its ergonomic testing, everything from prototyping to heat testing takes place in-house, reports Business Insider.

“One of the things that was really important to us was to have better tools and better space for building, prototyping, and testing,” Chapin told Business Insider. “We hope to double in size here in the next six to 12 months just to be able to do all the things we want to do.”

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