No More Compromises! Many couples have different body types and different support needs and preferences. Almost every Dormio Mattress allows each partner to choose their own support level. In our Premium Collection, you have 5 different firmness levels per side so the perfect fit is waiting for you.No More Compromises! Many couples have different body types and different support needs and preferences. Almost every Dormio Mattress allows each partner to choose their own support level. In our Premium Collection, you have 5 different firmness levels per side so the perfect fit is waiting for you.