Mattress Tension, Soft, Medium or Firm. Which is for you?
So which tension is for you? If a mattress is too firm for you, you will be able to slide your hand easily between the mattress and the hollow of your back and your spine will bow up, creating pressure points on your shoulders and knees. If the mattress is too soft, you will not be able to slide your hand beneath your back and your spine will bow downwards creating pressure points on your hips.