Casper Sleep - Bed Frame - Compact and Easy to Assemble (Queen) This frame is built for use with the Casper Foundation but can be used with other box springs and Mattress Sets Recommended as the base of your Casper Sleep system. This frame offers durable and sturdy support under your foundation or box spring Made from 100% recycled steel with plastic components This frame is easy to assemble and disassemble quickly with no tools required Designed and assembled in the USA