What are the dimensions of the Yogabed mattress box? August 13, 2020 14:57 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 How do the mattress orders ship? When will my mattress order ship? What is the difference between the Rohm and Hushh? How long does it take to receive a mattress order? How can I dispose of my old mattress?