FAQ MATTRESSES CAN I USE THE MATTRESS ON A SOFA BED? SEE ALL QUESTIONS CAN I USE THE MATTRESS ON A SOFA BED? Our foam mattresses are not designed to be used in sofa beds. Repeated folding will cause long term damage to the materials. YOU MAY ALSO LIKE Can I use an adjustable base? What setup do you recommend for a Casper mattress? When can I expect to receive my Casper products? What’s thread count and why is it important? Do you make custom size or RV mattresses?