Pocket spring mattresses are to be selected individually according to the weight of the sleeper, whereas persons with back problems should rather resort to a mattress with a higher degree of hardness. However, it should be noted that the hardness can be perceived differently depending on the manufacturer and mattress model.
Basically, the hardness of pocket spring mattresses can be classified as follows:
The hardnesses H1 and H2 indicate soft pocket spring cores, H1 is recommended up to a body weight of 60 kg, H2 up to 80 kg. For an average body type, the average hardness, H3, is thought, it is designed for a weight up to 100 kg. H4 and H5 are recommended for overweight people (body weight over 100 kg), H5 being indicated only for very strong overweight or for orthopedic purposes. Of course, these figures are approximate, which must be seen in relation to the size and weight of the sleeper.
The height of the mattress
The total height of the mattress includes the height of the spring core plus the dimension of the outer shell. Thus, the design of the spring core (depending on the type of mattress), number of springs, upholstery and the type and thickness of the cover affect the height of the mattress.
Mattresses are differentiated according to their density. This is given in cubic meters (m³) and is in direct relation to the weight of the mattress in kilograms. For optimal comfort, the density of the mattress should be about 30kg / m³. For example, in cold fluff mattresses, the RG should be at least 40.
Number of springs
Contrary to the general assumption that the more springs the mattress has, the more mattresses show that high-quality pocket spring cores have about 440 to 500 different degrees of elastic steel springs. If there are too many springs, the individual springs can not fully emphasize their punctual elasticity, which reduces the comfort of lying down. In return, the mattress loses noticeably in stability and support capacity at too low a number of springs.