Abstract: A Mattress (1) composed of a base (3), and various independent and detachable parts (4) in form of blocks, and various joining means (2) consisting of adhesive fabrics of a Velcro type or similar that join the base (3) together with the independent and detachable (4) parts. The base can be of any shape and material, flexible or semi-rigid and provided of different dimensions depending on each type of use. The independent parts (4) can be cut lengthways and transversely, like a traditional mattress and can have sections with different shapes and dimensions, therefore also having different heights. They are preferably manufactured in latex even though other materials can be used that would favour its adaptability. The mattress (1) may be covered, in this case it would carry a fastener that would facilitate the insertion, extraction or change of position for the independent parts, this fastener can consist of a zipper, pressure latch or any other type that would permit an easy access to the cushion.