Wood structure covered in double density polyurethane foam, firm on the structure, medium density near the headboard. The platform base, divided from the headboard, is assembled with metal corner pieces that also allow easy mounting and adjustment of bedspring height, to lower it 10 cm under the bed edge 2 cm at a time.This allows any type of bedspring to be used, and also permits the height of the mattress level to be changed. The base is in powder coated metal in the colours bronze or black. The base can accommodate - a fixed bedspring with wood staves, the sommier spring base for bed bases fitting flush with base, - Only for the queen/king-sized model, a practical storage container with two mechanisms to bring the mattress base to a level position. The bottom of the container is in laminated wood with a silky surface finish. The back of the leather headboard can be covered in coordinated velvet. Given the particular assembly of the product, the upholstery is not removable.