What makes a good medium mattress?
Whether it's soft, firm or medium, you want your mattress to last no matter what tension it is. If the tension gets firmer or softer over a short period, the quality of the mattress is poorer. The British Bed Company ensure they produce mattresses of quality that will stand the test of time, so despite the spring tension being lower in this mattress, it will last just as long as a firmer one. This can be corroborated by the 5 year warranty that the British Bed Company supplies with this mattress.