Mattress structure and a method using the characteristics of the mattress structure for understanding and deciding suitability of the mattress structure

A mattress structure comprising:

• a principal axis;
• and
• a plurality of relief units distributed along the principal axis to form a relief layer, wherein
• at least one of the relief units has a reliefability different from that of the other relief unit to define a relief profile with different reliefability along the principal axis,
• at least one of the relief units is a main relief unit with a reliefability higher than other relief units,
• at least two of the relief units are different in at least one dimension,
• the position of the main relief unit relative to the other relief units is changeable by interchanging the position of the relief units relative to one another along the principal axis, such that the position of the main relief unit in the relief layer along the principal axis is adjustable by a unit length in accordance with position of the body part along height of the user for customizing the relief layer,
• optionally, the unit length is one inch such that the position of the main relief unit along the principal axis may is adjustable by a unit of one inch, and
• optionally, the relief layer is usable with and by placing the relief on a conventional mattress.

A method making use of the mattress structure of claim 1, for allowing a user to understand usage of the mattress structure and to make a decision on suitability of the mattress structure, the method comprising:

• (i) providing a sample mattress structure by a seller, the sample mattress structure comprising a relief layer, the relief layer comprising at least two disassembleable relief units, the relief layer being dividable into at least two relief zones, these relief zones corresponding to positions of various parts of the user's body, at least one of the relief zones including relief units of different sizes, at least one of the relief units being a main relief unit which provides greater reliefability than the other relief units, the relief units in the relief zones being interchangeable in position to change relative positions of the relief units in the zones to accommodate different body heights and lengths of various body parts of different users or different body conditions;
• (ii) testing the sample by the user, understanding use of the mattress structure and deciding suitability of the mattress structure by the user, by changing position of the main relief unit relative to the other relief units in the mattress structure according to personal needs for testing the sample mattress structure;
• (iii) providing a new mattress structure in exchange for the sample mattress structure by the seller when the user has become familiar with use of the mattress structure and decided the mattress structure to be suitable;
• optionally, further including a chassis for accommodating at least two relief units in the relief layer, to delimit relative position of the relief units;
• optionally, the user is required to take away the sample mattress and test the sample mattress within a specified period of time for understanding the use of the mattress and deciding the suitability of the mattress;
• optionally, the user is required to pay a deposit or a full price of a mattress structure before the sample is provided for testing;
• optionally, further comprising performing step (ia) before performing step (i), step (ia) comprising providing a detection device for determining a sequence of the relief units and a position of the main relief unit, relative to other relief units, that is suitable for the user;
• and
• optionally, size of the sample mattress is different from that of a new mattress structure.