The relyon firm superflex support mattress is constructed from superflex foam which is designed for those who prefer a firmer feel the mattress features a luxurious quilted damask cover which along with the fillings is completely breathable this roll up mattress is quick to unpack and easy to transport it can easily fit into a car or through small stairways and loft spaces its also hypoallergenic meaning dust mites cannot survive in the foam allowing a healthy environment and peaceful