Which mattress firmness suits my height and weight?

As a guideline: if you weigh 85 kg and are 1.82 m tall, Medium is the right firmness. At 130 kg and 1.90 m, you end up at Extra Firm. The material of the comfort layer also plays a part: Visco, latex and Waterfresh Foam are naturally softer, so you'll go up a firmness level sooner than with Hybrid Foam or HD Foam, which feel firmer. Our firmness curve plots height against weight, and the mattress test does the calculation for you.