Abstract: A mattress (10) being asymmetric such that in the same surface (31, 32) of the mattress there are at least two zones (22, 25) or areas of different hardnesses for the different parts (41-44) of the user's (40) body, located such that the first zone (22) or area between the midpoint of the mattress and one end (30a) is softer than the second zone (25) or area between the midpoint of the mattress and the other end (30b). The mattress system has three mattresses (10-10c) of different hardnesses, the zones (21-26) or areas in one side of the mattresses being softer than the corresponding zones or areas in the other side of the mattress.

Abstract: A mattress (10) being asymmetric such that in the same surface (31, 32) of the mattress there are at least two zones (22, 25) or areas of different hardnesses for the different parts (41-44) of the user's (40) body, located such that the first zone (22) or area between the midpoint of the mattress and one end (30a) is softer than the second zone (25) or area between the midpoint of the mattress and the other end (30b). The mattress system has three mattresses (10-10c) of different hardnesses, the zones (21-26) or areas in one side of the mattresses being softer than the corresponding zones or areas in the other side of the mattress.