This is the basic budget version of the Wilson Beds dual sided breathable water resistant foam free spring mattress. It is built around the traditional double insulated 13.5-gauge open coil spring unit with a layer of polyester comfort fillings covered in a blue, breathable, water resistant fabric. To get the best from your new dual sided mattress, we recommend turning it and rotating it regularly. As this mattress is rolled up in a box for delivery, it does not come with side supports. Please note – wipe clean and dry as soon as possible after accidents. Do not use bleach or abrasive cloths or abrasive cleaning products on this mattress.