Teenage mattress-top mattress, medium hardness. The mattress has two sides of different firmness. On one side, a 100% natural sea grass layer - moderately hard, and on the other side - a coconut fiber board, which gives the mattress stiffness and orthopedic hardness. The natural properties of sea grass allow you to keep cool in summer. Special ecologically clean additives prevent dust and parasites from entering the mattress. Winter - Summer.