Can I use the mattress on a sofa bed? November 28, 2018 16:17 Updated Follow We don't recommend using Simbas with a sofa bed as folding the mattress in that way may damage the spring layer inside. Related articles Do I need to use a mattress protector? Can I use an adjustable bed? Do I turn my mattress over regularly? Can I use an electric blanket with my Simba? Can I machine wash my Simba bedding?