This isn’t an easy question to answer, as it largely depends on your personal comfort preferences. As a general guideline, we recommend firmness level H3 from a body weight of around 80 kg, H4 for around 100 kg and H2 if you weigh less than 80 kg. But if you know that you generally prefer a firmer mattress, you can of course also choose H3 or H4 even at a lower body weight – and vice versa, if you prefer a softer feel. And if you do make the wrong choice, no worries: we offer a 30-day right of return or exchange policy.