What are the dimensions of the Yogasleep™ mattress box? March 28, 2025 12:08 Updated For Twin, Twin XL and Full mattresses: 44" x 16" x 16" For Queen, King and Cal King mattresses: 44" x 20" x 20" Related articles Can you ship to a P.O. Box? Can I make special requests regarding my delivery? How long does it take to receive a mattress order? Is there a recycling fee for Yogasleep™ mattresses?